Add Yahoo as a preferred source to see more of our stories on Google. A federal judge has partly ruled in favor of environmental groups challenging what one called a vast "spaghetti" network of ...

PHILADELPHIA (AP) — Sixteen critically endangered western Santa Cruz tortoises born to some very old parents got a slow walk and the red carpet treatment Wednesday at a Philadelphia Zoo event to show ...

The Philadelphia Zoo just welcomed a new generation of slow-moving royalty — and gave them the red carpet treatment. Sixteen critically endangered western Santa Cruz tortoises made their public debut ...

Spotting a Mojave Desert tortoise is increasingly difficult in the American Southwest. The tortoises, with their unmistakable domed patterned shells, live in California, parts of Nevada, Arizona and ...

The animals are also vulnerable to a range of deadly diseases such as upper respiratory illnesses and the shell disease cutaneous dyskeratosis, which softens their shells. Finally, as climate change ...

Turtles and tortoises are reptiles with hard, protective shells, but they differ significantly in habitat, anatomy, and lifestyle. Turtles are primarily aquatic or semi-aquatic, featuring streamlined ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. PHILADELPHIA (AP) — Sixteen critically ...