That Reptile Blog – Reptile, Amphibian and Exotic Pet Care and Information

This article is one of a series in which I plan to provide a brief introduction to both popular and rarely-kept amphibians, reptiles and invertebrates.  Detailed care articles will follow…until then, I would enjoy receiving your questions and comments.  Today we’ll take a look at one of the world’s most stunning large constrictors, the Boelen’s or Black Python, Morelia boeleni. 

Recently, while thumbing through my well-used copy of Dick Bartlett’s wonderful book In Search of Reptiles and Amphibians (E J Brill, 1987), I came across his account of one of the first Boelen’s Pythons to be exhibited in the USA.  It put me in mind of my early experiences with these awe-inspiring snakes, and I decided to look into their current status.  I was happy to see that some great work has been done in both the field and captivity…a fantastic summary of this, along with many photos, is posted on the website of the Boelen’s Python Group. Read More »

A recent article in the journal IRCF Reptiles and Amphibians (V17, 1) provides evidence that the African Rock Python (Northern African Python, Python sebae), may have established a breeding population in southern Florida.  The huge constrictors are adapted to take small antelopes and other large animals, and have been killed and consumed people in their native habitat.

Florida’s Introduced Constrictors

At least 45 species of non-native reptiles and amphibians have established breeding populations in Florida; many others have been observed but are not known to be reproducing.  Among these are 2 of the world’s largest snakes, the Burmese Python and the Boa Constrictor.  Other large constrictors, including the Green Anaconda, Yellow Anaconda and White-Lipped Python, have been found at large in Florida.

Anacondas and others Established?

Given the extent of Florida’s wetlands and other densely-vegetated habitats, it is not unlikely that reproduction of other species has occurred unseen.  Anacondas, being aquatic, are especially difficult to find.  Years ago, I was told by a reliable source that an entire litter of Green Anacondas escaped from a roadside zoo near Florida City in the early 1970’s…nothing would surprise me at this point!

Northern African Python Study

The article mentioned above looked at Northern African Python sightings and captures in south Florida from 2002-2009.  In that period, 7 individuals were found in a small (less than 10 square miles) area in Dade County.  Among the captured snakes was an 15.5 foot-long adult female with eggs forming in the oviduct, reproductively active males, and several young-of-the-year.  The ages and sexes of these snakes, and their proximity to one another, suggests a breeding population.

Also notable is the fact that the capture sites were less than 1 mile from the border of the Everglades, an immense habitat that could easily hide other African Rock Pythons.

Recent meals – a Domestic Turkey and a Boat-tailed Grackle – were recovered from 2 of the snakes.

Python Hybrids

The African Rock Pythons were found in an area that abuts or overlaps with the range of Florida’s introduced Burmese Pythons.  The 2 species will mate with one another in captivity; the fertility of the resulting hybrids, and their possible affect on south Florida ecosystems, bears further study.

Further Reading

The African Rock Python in Florida (National Geographic)

Video: Rock Python found in Florida

News Article, Photo: African Rock Python Captured in Florida

Study: Burmese Python Winter Tolerance

Python Sebae image referenced from wikipedia and originally posted by Brian.Gratwicke

In 2008, a computer-based study by the US Geological Survey stated that Florida’s introduced Burmese Pythons (Python molurus bivittatus) might colonize up to 1/3 of the United States in time.  While the snakes’ presence in Florida is a severe problem, the release of this study generated a flood of illogical fears and predictions.  Recently, another study conducted by a noted herpetologist and utilizing live snakes has injected some sanity into the controversy. Read More »

A female Boa (Boa constrictor) shocked herpetologists by giving birth to live young that she produced by cloning rather than mating.  What’s more, the process used to create the young is new to the animal world – it has not been seen in any other vertebrate.

Asexual Births in other Species

Asexual reproduction or parthenogenesis – producing young without mating – is well known among insects and certain fishes (including Hammerhead Sharks), some of which can even switch sexes several times.  It has also been recorded in a small number of reptiles, such as the Brahminy Blind Snake, American Whiptail Lizards and the Komodo Dragon.  Read More »

The following article is writen by That Reptile Blog Guest Blogger Joseph See and contains information that may be of interest to our readers.

Hello all, I am Joseph See. As a college student working towards a degree in biology, I thought I would write about a very underrated group of snakes, which also happen to be the first snakes I kept and bred. When I was younger I kept all the manner of creatures around the house, except snakes, which my parents disliked. But upon moving out in college I decided to try my hand at one species that I read much about and always fascinated me.

Egg-eating Snakes (Dasypeltis) are fascinating, highly specialized colubrids that are featured in almost any book on snakes, due to their bizarre feeding habits. Egg-eating Snakes feed solely on bird eggs, and can swallow eggs several times the size of their heads. They are also undemanding and easy to keep, as long as you start with established specimens. Read More »