Striking new snake species discovered in Paraguay

A beautiful non-venomous snake, previously unknown to science, was discovered in Paraguay and described by researchers of the Paraguayan NGO Para La Tierra with the collaboration of Guyra Paraguay and the Instituto de Investigación ...

Bolivian river dolphins observed playing with an anaconda

A trio of scientists, one with Universidade Federal do Rio Grande do Sul, another from Museo Historia Natural Noel Kempff Mercado and a third independent researcher, report evidence of several Bolivian river dolphins playing ...

Snakes and lizards evolve minus key T cells

The slow-moving Australian sleepy lizard has raised new questions about vertebrate immunity after the surprise discovery of the evolutionary disappearance of genes needed for some T cell production in squamates.

New study unlocks mystery origin of iconic Aussie snakes

New research led by the University of Adelaide has found the first tangible evidence that the ancestors of some of Australia's most venomous snakes arrived by sea rather than by land—the dispersal route of most other Australian ...

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