As a monotreme, a rare group of mammals that lay eggs, the echidna represents a living relic of an ancient lineage. With only five existing monotreme species, including the platypus, the echidna’s ...

The mammary glands of the mother produce milk for her offspring. With the exception of the platypus and echidna, which lay eggs, all mammals also give birth to live young. There are several other ...

Often mentioned in the same breath as the platypus, the echidna also harks back to a bygone era. These spiny mammals are part of the monotreme family, meaning they lay eggs instead of giving birth to ...

Jukka Jantunen/Shutterstock.com Like many other entomophagous animals, the short-beaked echidna has a thin snout and long, sticky tongue to capture its prey of ants and termites. A supremely weird ...

The peregrine falcon pair in the nest on top of Pitt's Cathedral of Learning have laid their first egg of the season.

A 1-degree-Celsius change in water temperature prompts sea turtles in Northern Cyprus to lay eggs nearly a week earlier on average.

The National Aviary's Peregrine Falcon Cam caught footage of the falcon couple's first egg of the season Sunday.

Celebrity bald eagle couple Jackie and Shadow are preparing to hatch triplets in their California nest following last year's ...

Shoppers used to picking up the cheapest eggs at the grocery store may now ... flocks of at least 75,000 now house over 95% of egg-laying hens, the United Egg Producers trade group estimates.