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

Many lizard-keepers find Mertens’ Monitors, Varanus mertensi, to possess an ideal mix of large and small monitor qualities.  While large enough to satisfy the desires of aspiring Crocodile Monitor keepers, they can be comfortable in sizable, but less than room-sized, enclosures.

Description

Mertens’ Water Monitor (not to be confused with the larger Water Monitor, V. salvator – please see photo) is the most thoroughly aquatic Varanid and has a number of specialized adaptations for life in the water.  The tail is laterally compressed (as in Crocodiles) to assist in swimming and the nostrils, which can be sealed during dives, are located high on the snout.  Read More »

Green Anoles (Anolis carolinensis) were one of the first lizards to be widely available in the US pet trade.  Although there were bright spots, our knowledge of their needs was severely lacking, and millions met untimely ends as a result (Horned Lizards, Phrynosoma spp., the other trade staple at the time, remain difficult captives still). Today we (and they!) fare better, but as my own experience indicates, the road has been rocky… Read More »

I remain awed by the learning abilities and complex behaviors evidenced by the Water and Lace Monitors I cared for at various zoos…spend time with any species and you’ll quickly see why.  Despite being popular study subjects, monitors are constantly surprising us.  For example, the current issue of The Journal of Herpetology (V44, N3, Sept 2010) documents an entirely new behavior for any monitor species – cooperative nest building and nest guarding in Rosenberg’s Monitor (Varanus rosenbergi).

Nest Defense by both Sexes

A 16-year-long study of this species on Australia’s Kangaroo Island has revealed that females guard their nest sites for up to 3 weeks after egg deposition, a behavior that has not been documented for any other monitor (3 species, including the Komodo Dragon, may return to the nest site on occasion, but seem not to remain nearby).  Amazingly, in 8 instances a male joined the female in protecting the eggs. Read More »

I have belonged to local herpetological societies since childhood, and continue to be involved with several today.  A few, such as the NY Turtle and Tortoise Society, nicely serve both professional herpetologists and lay people…but whatever their leanings, all are of immense value.  Today I’d like to highlight some professional groups and journals that are open to everyone.

The Bronx Zoo’s Reptile House has copies of the “Big Three” – The Journal of Herpetology, Copeia and Herpetologica – dating back to the first issues of each, and in my 21 years working there I think I went through most of them!  Membership tends to be expensive (student rates are often available), so I summarize research notes from current issues and post them here on occasion (please see articles below).  Read More »

A breeding population of African Five-Lined or Rainbow Skinks, Trachylepis (formerly Mabuya) quinquetaeniata, has been discovered in Port St. Lucia, Florida, bringing the total number of exotic herps known to be established in the USA to 66.  The Giant or Green Ameiva, or Jungle-Runner (Ameiva ameiva), known to the state since 1954, seems to be expanding its range.

Florida’s Newest Exotic

Rainbow Skinks, which are native to a broad belt of Sub-Saharan Africa stretching from Senegal to Kenya, are the newest of Florida’s many exotic animals.  Well-known in the US pet trade, the recently discovered population seems limited to a weedy lot near a now-defunct reptile importing business.  Past reports of dead and dying skinks found on the importer’s property point towards the all-too-common source of the new arrivals.  Read More »