Please don't try this at home...Scientists at the San Diego Zoo's Institute for Conservation Research have just informed me that they've placed 24 mountain yellow-legged frogs into special refrigerators that will hopefully cause the endangered frogs to mate. (Image: Chris ...

 Take a closer look at this week's top stories in the Discovery News Flashback Slide Show.

 The Interior Department decides against granting the bird endangered or threatened status.

 The ultrasonic songs vary widely, with some winning males emitting tunes that prove irresistible to females.

 The larger the male lizard, the more likely he is to father sons, suggests a new study on brown anole lizards that also determined smaller males tend to sire daughters. Adult females, however, help to control the process. Female lizards ...

 Wall Street may have its human bulls and bears, but Manhattan has become very popular these days with a real wild animal visitor: coyotes. (Coyote pounds the pavement; Credit: marya) Surprised onlookers have recently spotted these wolf relatives in Chelsea, ...

 Exploring this symbiotic relationship could help us to understand how bacteria operate within our own bodies.

 Animal rights group PETA wants Knut the polar bear castrated to avoid incestuous mating.

 The huge, Cretaceous Era beast was found coiled inside a dinosaur nest, providing a rare glimpse into the feeding behavior of primitive snakes.