The animal kingdom is filled with extraordinary species, each with features that make them stand out from the rest. Among ...

You might think you know why the platypus is a bizarre beast. Maybe you know that it lays eggs, that the males have venomous spurs on their ankles, and that it can sense electricity with its bill. But ...

Similarities to the womb and placenta of female mammals indicate a response to common evolutionary challenges in pregnancy.

The toxic cane toad may be big and warty, but the eggs it lays in delicate, translucent strings resemble a strand of ...

The platypus, a unique mammal, possesses a venom system in adult males delivered via hind leg spurs. This venom, primarily ...