Skip to main content


The Pacific Giant Salamanders

They have robust skulls, big teeth, they reach a reasonable size and they're restricted (today) to northwestern North America. They're the Pacific giant salamanders...

October 31, 2016 — Darren Naish

The Biology of Sirens

Sirens build nests, have beaks, eat plants and have a history of "size shuffling"--they're incredible!

June 15, 2016 — Darren Naish

Nobody Expects the Korean Crevice Salamander

The presence in Europe of plethodontids is unusual enough (albeit well known), but a major surprise in plethodontid research was the discovery of an Asian member of the group, the Korean crevice salamander Karsenia koreana Min et al., 2005. Plethodontid expert David Wake described its finding as “the most stunning discovery in the field of herpetology during my lifetime”...

August 18, 2015 — Darren Naish

Model salamanders, in a cave

While on a family holiday recently I visited Dan yr Ogof, the famous National Show Cave for Wales. Besides being interesting for the expected geological and speleological reasons, Dan yr Ogof is set within landscaped gardens that, bizarrely, feature one of Europe's largest `dinosaur parks'.

June 6, 2014 — Darren Naish
33% of the newts of my country

33% of the newts of my country

I know the newts of my country… but that’s not hard, there are only three (or four if you count the alien one). The Palmate newt Lissotriton helveticus is Britain’s smallest species (reaching 95 mm in total length), though it’s not the smallest of all European newts, being exceeded by the 80 mm Italian newt L.

September 9, 2013 — Darren Naish

A Need for News on Nototriton

I must have said that one of my aims here at Tet Zoo is to write about obscure amphibian species that rarely get covered elsewhere. The main thing stopping or slowing this plan concerns the availability of images – good, available pictures showing the species concerned are often not availability. Anyway, through the good graces of Jonathan Kolby, I here present an image of the extremely rare tropical American plethodontid salamander Nototriton brodiei of Guatemala and Honduras. The animal is known from less than ten specimens.

August 20, 2015 — Darren Naish


Tet Zoo loves amphibians* (that’s anurans, salamanders, caecilians and their close relatives), and since 2008 I’ve been making a concerted effort to get through all the amphibian groups of the world.

October 1, 2013 — Darren Naish
Hellbender Head Start: Raising Giant Salamanders in the Bronx

Hellbender Head Start: Raising Giant Salamanders in the Bronx

Four years ago 41 hellbender salamander larvae from western New York State arrived at their temporary home in New York City. Originally collected as eggs near the Allegheny River, the hellbenders—also known as snot otters or devil dogs—were hatched at the Buffalo Zoo and then transferred to the Wildlife Conservation Society’s Bronx Zoo, where they [...]

August 28, 2013 — John R. Platt

NEW eBook!

Get the latest on Alzheimer’s and more