The Oregon Zoo mourns the loss of Tilly, a 16-year-old North American river otter, who was humanely euthanized due to ...

“Young river otters are extremely dependent on their mothers, and Tilly not only raised her own offspring but three other ...

Tilly, a river otter, came to the Oregon Zoo in 2009 as an injured and orphaned pup. She birthed four pups while at the zoo.

It was a somber day at the Oregon Zoo on Wednesday when the zoo announced the death of its beloved otter ‘Tilly’.

This is a very sad time, especially for Tilly’s care staff,” said Jen Osburn Eliot with the Oregon Zoo, in a statement.

This is a very sad time, especially for Tilly’s care staff,” said Jen Osburn Eliot with the Oregon Zoo, in a statement.

MADISON, Wis. -- The Henry Vilas Zoo recently welcomed two new members to its family. The zoo announced Wednesday that two North American river otter pups, female Ginger and male Wasabi, were born on ...

Imagine an animal so baffling that the world’s best scientists once thought it was a hoax. A beast with the bill of a duck, ...

This week, the Animal Health and Animal Science teams performed quick exams of three North American river otter pups so that ...

If you see a furry head with whiskers pop up in a local creek or wetland, it may be an otter. Or it may be a beaver.River otters were re-introduced to Western New York in the late 1990s after they ...