Chameleons in mythology

Chameleons in mythology

by Alex Laube General topics Newspaper articles

With its independently moving eyes, shooting tongue and ability to change colour, the chameleon was already the subject of superstition and myths in ancient times – and has remained so in many places to this day. An article now published by Prof. Dr. Wolfgang Böhme and natural historian Thore Koppetsch deals with precisely this topic.

The content ranges from the so-called Brooklyn Papyrus, which described a still unexplained “colour-changing” creature of antiquity, to bizarre events involving mother’s milk and chameleons in the Gambia of our time. Probably the oldest written record of a chameleon comes from Greece, from Aristotle himself, who lived from 384 to 322 BC. The term chameleon itself probably goes back to the Greek: chamai and leon were put together to form “earth lion”. However, this interpretation of the origin of the word is not entirely undisputed. The article also deals with superstitions on the island of Samos, in Morocco, Tunisia, Togo, Benin, Cameroon and Madagascar, and the use of chameleons for pseudo-medicine and occultism.

Chamäleons in der Mythologie der Völker
Wolfgang Böhme, Thore Koppetsch
Koenigiana 17, 2023, pp. 39-50
DOI: nicht vorhanden

Oddity: Use of chameleon powder in Algeria

Oddity: Use of chameleon powder in Algeria

by Alex Laube General topics

Dried bodies of Chamaeleo chamaeleon have always been used in traditional medicine in Algeria. In the El Oued region, extracts and powders from common chameleons are still regularly used today for the therapy of various diseases and various superstitions. An Algerian biochemist has now tried to prove the benefits of chameleon powder in a somewhat curious way.

Allegedly exactly 1000 users of the powder as well as 100 hunters and sellers were questioned for a maximum of 10 to 15 minutes by means of questionnaires or interviews. The evaluation of these was not published. However, the author states that according to the interviews, chameleons are only hunted by “experienced persons”. However, the breeding season is left out, so no damage to the chameleon population is to be feared.

In addition, an unspecified number of wild Chamaeleo chamaeleon were captured and killed in Algeria. The organs were removed, the chameleons washed, salted and dried at 35 to 40°C for over a week. The dried bodies were then washed again and re-dried in an oven at 45°C. The chameleons were then killed using mice. Then the chameleons were ground using a mortar to obtain powder. Dry matter, ph values, protein, carbohydrate, fat, calcium, magnesium, sodium, potassium and ash contents of the powder were examined. A relatively high phosphorus content of 14.01% stood out, and traces of iron, zinc and copper were also detected. A relatively high concentration of vitamin E (19.23 mg/100 g powder) was noticed, as well as vitamin B1 (21 mg/100 g powder). Under laboratory conditions, the powder proved capable of scavenging radicals. Also in the laboratory, the powder as an extract at 100 mg/ml showed some efficacy against various bacteria. In a chicken chorioallantoic membrane (CAM) assay, angiogenesis was tested around a powder disc inserted into a fertilised chicken egg.

Several groups of laboratory rats were treated with carbimazole in the drinking water. Afterwards, one group was freely injected into the abdomen with a solution containing chameleon powder, one group was fed chameleon powder in various mixtures, another was given levothyroxine in the drinking water, another nothing at all and a final group was injected with water in the abdomen. After the experimental period, blood was taken and then all the rats were killed and dissected. The rats showed no reaction to the chameleon powder, while treatment with levothyroxine, not surprisingly, resulted in various changes in blood count and blood chemistry.

The author interestingly concludes from all these experiments that the use of dried chameleon powder is safe for use in humans and can treat tonsillitis, coughs, skin diseases such as vitiligo, scorpion stings, urinary tract infections, leukaemia (!) as well as thyroid diseases. However, none of his studies provides any proof of this and so this “study” remains more of an absurd curiosity.

Physicochemical composition and evaluation of biological activities of Chamaeleo chamaeleon
Ouafa Boudebia
Thesis TD571/007/01 der Universität von Eloued, 2023
DOI:  none

Presentation in Winterthur about the European Chameleon

Presentation in Winterthur about the European Chameleon

by Alex Laube Live lectures

Markus Grimm, a long-time member of the AG Chamäleons and entrusted for many years in Switzerland with conducting expert courses for chameleon keeping, will give a detailed lecture on the European Chameleon on 14 April 2023 in Winterthur (Switzerland).

The European Chameleon (Chamaeleo chamaeleon) in a way describes the archetype of the chameleon as such and thus has status character for the human conception of chameleons. The rather seldom-kept chameleon species makes some demands on keeping and breeding, which Markus was able to fathom during trips to the habitat as well as in captivity. After a short introduction, which includes systematics, Markus gives insights into the habitat of this chameleon in nature. In addition, the audience will learn the most important parameters for successful keeping and breeding in the terrarium. So it will definitely be very exciting – anyone interested in chameleons should definitely watch this lecture!

Markus Grimm The European Chameleon – Habitat, Keeping and breeding in captivity
DGHT City Group Winterthur
Restaurant “Rössli”
8405 Winterthur (Switzerland)
The presentation starts at 8:00 p.m.

Our conference programme for May 2023

Our conference programme for May 2023

by Alex Laube AG Interna

After we were able to publish a preview of the conference programme in December last year, we now have the final conference programme. This year’s conference will take place from 05 to 07 May 2023 in the tranquil town of Boppard am Rhein. As experience shows that the weekends in Boppard are booked up quickly, we recommend that you look for a hotel or guesthouse soon. Our programme has become a nice mixture of keeping reports, general terraristics and travel reports. Friday is the traditional day for arrival and a pleasant dinner in the local restaurants.

Saturday starts with a classic husbandry and breeding report. Jean-Dominique Dufraine has been keeping Rieppeleon brevicaudatus and Archaius tigris for several years. He talks about his experiences in breeding, but also in the everyday keeping of the two species. Afterwards, Thorsten Negro will take us on a search for Parson’s Chameleons in their natural habitat in Madagascar.

In the afternoon, Oliver Witte will give us an exciting insight into law, legislation and terrarium keeping – don’t worry, it won’t be as dry as it sounds, but very interesting for chameleon keepers. As a highlight, the physicist Sarina Wunderlich from www.lichtimterrarium.de has also agreed to join us. LEDs are becoming increasingly popular in terrarium keeping, not least because they can save a lot of electricity. Sarina will show us the advantages and risks of LEDs and discuss the latest development, UV LEDs. After these two presentations, we have planned plenty of time for discussion and questions, because there will certainly be plenty to talk about. At the end of Saturday, Rayana Vuillemain will introduce us to the Association Caméléon Centre Conservation (Switzerland) – this is the only presentation in English.

Sunday will be another colourful day: Lars Dwinger will report on a Madagascar trip to the southern highlands and the central east of the island. He travelled between carpet chameleons and rice fields as well as in the rainforest of Ranomafana, where he met a variety of small and large chameleons. Markus Grimm will conclude with an overview of Chamaeleo chamaeleon in its natural habitat in Europe as well as keeping and breeding them in terrariums.

We are very much looking forward to a nice meeting and many chameleon friends!

Genetics: Karyotype in the Veiled Chameleon

Genetics: Karyotype in the Veiled Chameleon

by Alex Laube Science

It has been known for some time that the sex of the Veiled chameleon (Chamaeleo calyptratus) is genetically determined. The species has an XX/XY system. Scientists from Russia, Great Britain, Italy, and Thailand have now studied the karyotype of the species, i.e. the characteristics of the chromosomes.

The probably most original karyotype of all chameleons is 2n= 36. This “primal chameleon” had six pairs of metacentric macrochromosomes and twelve pairs of microchromosomes, particularly small chromosomes. The Veiled chameleon, on the other hand, has a smaller number of chromosomes, namely only 2n=24. Using various genetic investigation methods, the researchers in the present study found that this karyotype probably arose through fusions. Microchromosomes apparently fused with each other twice, and micro- and macrochromosomes fused no less than four times. The latter, the so-called heterogeneous fusion between chromosomes of different sizes, is unusual for vertebrates. Normally, macro- and microchromosomes are located at different locations in the cell nucleus and are transcribed and replicated at different rates. However, this phenomenon is already known from alligators and turtles – for chameleons it is new.

Until now, it was also unclear which pair of chromosomes in the Veiled chameleon is actually responsible for the sex. In Chamaeleo chamaeleon, the second largest chromosome pair codes for sex. However, initial speculation suggests that in the Veiled chameleon the fifth chromosome pair (CCA5) may instead be the sex chromosome pair. The conjecture still needs to be validated by further research. It is also still up for discussion which gene is actually predominantly responsible for the development of the sex organs in the embryo – the researchers identified at least three possible genes on CCA5.

Identification of Iguania ancestral syntenic blocks and putative sex chromosomes in the Veiled Chameleon (Chamaeleo calyptratus, Chamaeleonidae, Iguania)
Katerina V. Tishakova, Dmitry Yu. Prokopov, Guzel I. Davletshina, Alexander V. Rumyantsev, Patricia C. M. O’Brien, Malcolm A. Ferguson-Smith, Massimo Giovannotti, Artem P. Lisachov, Vladimir A. Trifonov
International Journal of Molecular Sciences 23, December 2022
DOI: 10.3390/ijms232415838

Fossil finds of Chamaeleo chamaeleon in Morocco

Fossil finds of Chamaeleo chamaeleon in Morocco

by Alex Laube Science

There have only been a few fossil finds of reptiles from Morocco so far, especially concerning Agama bibronii and Chamaeleo chamaeleon. Archaeologists from the National Institute of Archaeology and Cultural Heritage (Institut National des Sciences de l’Archéologie et du Patrimoine, INSAP) in Rabat, Morocco, have now published an overview of Moroccan finds.

The rock cave of Ifri n’Ammar belongs to the Rif mountain range, which runs about 50 km away from the northeast coast of Morocco and is part of the Atlas Mountains. Ifri n’Ammar is located in a valley south of the town of Afso, on the border of two wadis. Since 1997, excavations have been led there by INSAP and the German Commission for Archaeology of Non-European Cultures (KAAK). Two Os prefrontale, two Os postorbitofrontale, three Os maxillare (upper jaw), six pieces of bone with acrodont teeth, and three vertebrae could be assigned to the family Chamaeleonidae so far. The distinction from fossil remains of agamas was quite clear: agamas have pleurodont teeth in the anterior region of the maxilla, whereas chameleons have only acrodont teeth. In addition, the shape and position of the nostrils differ. Agamas also do not have the bony tubercles and “crests” typical of chameleons. Since Chamaeleo chamaeleo is the only representative of the chameleons found in the Maghreb today, the fossils were attributed to this species.

The fossils were all found in a layer at a depth of three meters, which is assigned to the Middle Stone Age. The fossil remains are therefore between 83,000 and 171,000 years old, which is considerably older than the remains discovered so far for chameleons in Morocco (Tarofalt, Guenfouda) and Algeria (Gueldaman). The archaeologists assume that at that time the area around the site must have still been tree-covered.

It is partly questionable how the pieces of bone from Ifri n’Ammar arrived at the finding sites. Traces on some bones indicate digestion processes and thus that the associated chameleons were consumed as prey. So not all of the chameleons found there died a natural death. According to the traces, birds of prey and small carnivores such as the gundi (a North African rodent) or simply rats could be possible predators.

Agama bibronii (Sauria: Agamidae) et Chamaeleo chamaeleon (Sauria: Chamaeleonidae) d’Ifri n’Ammar (Rif oriental, Maroc)
Touria Moushine, Fethi Amani, Abdeslam Mikdad
Quaternaire 33 (03), 2022
DOI: 10.4000/quaternaire.16948

Chamaeleo chamaeleon in Turkey

Chamaeleo chamaeleon in Turkey

by Alex Laube Science

The European chameleon Chamaeleo chamaeleon inhabits a range that extends from North Africa through southern Portugal and Spain as well as Cyprus and Malta to Lebanon, Syria and Turkey. So far, however, very little is known about the populations in Turkey.

Turkish biologists have recently undertaken the first small study to change this state. They examined 29 European chameleons for their snout-vent-length and, using skeletochronology, for their age. 15 of them were males, 14 females. The animals studied were museum specimens from Dokuz Eylül University. They were collected in the surroundings of the Akyatan lagoon at earlier times. Akyatan is located in the south of Turkey directly on the Mediterranean Sea, about 200 km from the Syrian border. The nearest major Turkish cities are Mersin and Adana.

The average head-torso length of Chamaeleo chamaeleon from Akyatan was 85.34 mm, with females slightly larger than males. The smallest chamaeleon measured 59.71 mm, and the largest 106.84 mm. Thus, the studied population in Akyatan seems to be possibly somewhat smaller than the comparative populations in Spain and Egypt. However, the numbers of animals examined are too small to be able to make reliable statements about this. The age of the animals was between two and four years. The males reached sexual maturity after the first hibernation, while the females did not reach sexual maturity until the second year of life.

Age and body size of the Mediterranean Chameleon, Chamaeleo chamaeleon (Linnaeus 1758) (Lacertilia: Chamaeleonidae) specimens collected from Adana, Türkiye
Elif Yildirim, Nurettin Beşer, Can Yilmaz, Kamil Candan, Yusuf Kumlutaş, Çetin Ilgaz, Elnaz Najafi Majd
Commagene Journal of Biology
DOI: 10.31594/commagene.1104020

New publication: A book about the European Chameleon

New publication: A book about the European Chameleon

by Alex Laube Book publications

“The common chameleon – Chamaeleo chamaeleon” fills a small gap in the reptile book market, because until now there was no comparable book dealing only with this species. The authors are Jürg Meier, professor emeritus of zoology at the University of Basel in Switzerland and member of the AG Chamäleons, Juan Pablo González de la Vega, herpetologist from Andalusia and Joaquín Santaolalla, head of the Biodiversity Control Centre at the Málaga Veterinary Office.

At the beginning of the book, the species Chamaeleo chamaeleon is introduced, its habitat and the differences to Chamaeleo africanus, the second chameleon species native to Europe. The rest of the first half of the book then deals mainly with basic knowledge about chameleons in general. The body structure, the modified hands and feet, the highly specialised eye, the ability to change colour and the famous tongue shot are discussed among other things. Again and again, results from scientific studies are incorporated into the text. The second half of the book deals with the life cycle and occurrence of Chamaeleo chamaeleon. Predators are introduced, and mating and reproduction, as well as the different colour dresses of the animals, are explained. Photos of nest-building, egg-laying and hatching of the small chameleons complete the presentation of the species. Finally, the endangerment of the European chameleon and current conservation efforts in Spain are discussed. Many photos and graphics illustrate the text.

The book is aimed at laymen – people who do not know much about chameleons and would like to learn more. It is easy to read and easy to understand, only a few sections get a little lost in scientific terms. A bit of a pity is some pixelated and altogether very colourful graphics in the book, which detract from the valuable overall impression. Ultimately, however, this does not detract from the purpose of the book. It awakens enthusiasm for chameleons, especially among interested nature lovers who have had nothing to do with these fascinating reptiles until now. And that is exactly what it was designed for. The book is currently being used in Málaga as a small textbook in environmental lessons at school and as a purchasable read for curious travellers and locals.

The book is available in German and Spanish. It is self-published and can currently be obtained from the author (see below) or from the Chameleon Centre of the Veterinary Office of Málaga, Spain.

The common chameleon – Chamaeleo chamaeleon
Jürg Meier, Juan Pablo Gonzalez de la Vega, Joaquín Santaolalla
128 pages, Jumeba Sachbuch Verlag
ISBN 978-3-907338-00-1

20 € including shipping
Order under https://jumeba.ch/shop/ or directly via the first author j.meier@jumeba.ch