For ecologists, the Covid-19 pandemic has presented a remarkable natural experiment in what can happen to wild animals when humans stay home. By Emily Anthes About two decades ago, the dark-eyed junco ...

A 29-year-old rescue parrot’s dramatic transformation has gone viral on TikTok, after viewers noticed the severe neglect the bird had endured. The video posted by Mulberry Acres Rescue (@mulberryacres ...

Swans do not have teeth. Instead, their strong bills have comb-like, serrated edges called lamellae (singularly, lamella), which act like teeth to grip and tear aquatic plants and small prey. Lamellae ...