Rosa (c. August 26, 1999 – June 5, 2024) was a female sea otter at the Monterey Bay Aquarium. She was known for being the aquarium's oldest resident otter, and as a surrogate mother for 15 abandoned otter pups at the aquarium.

Otters are carnivorous mammals in the subfamily Lutrinae. The 13 extant otter species are all semiaquatic, aquatic, or marine. Lutrinae is a branch of the Mustelidae family, which includes weasels, badgers, mink, and wolverines, among other animals.

Rosa is currently the oldest known living sea otter at approximately 24 years, 4 months. She is older than the oldest known male sea otter, Adaa, who lived to be 22 years 8 months old before his death but not older than the oldest known female otter, Etika, who lived to be approximately 28 years old. What is the life cycle of an otter?

Mar 4, 2025 · How Old is the Oldest Otter? The oldest otter on record was Etika, a female sea otter (Enhydra lutris) who lived to be approximately 28 years old. She passed away due to old age at the Seattle Aquarium in Washington State, USA, on November 20, 1997.

Otters live unique lives, with varying lifespans depending on their species and the environment they inhabit. While there's no one-size-fits-all answer, most otters can expect to live around 15 years on average. However, this lifespan can be influenced by a multitude of factors that shape their existence in the wild.

Aug 21, 2023 · The Monterey Bay Aquarium Sea Otter Program has played an important role in the continued recovery of the southern sea otter population with our research, rescue, rehabilitation, and surrogacy work.

The Eurasian otter (Lutra lutra), also known as the European otter, Eurasian river otter, European river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia and the Maghreb.

North American river otters, also called Canadian otters, have long, muscular, streamlined bodies with short legs and fully webbed feet bearing non-retractable claws. Their small heads widen to long necks and shoulders, and they have flattened, well-muscled tails.

2 days ago · The article mentions one sea otter named Rosa living to be 24 years old. Giant River Otters: These magnificent creatures can live up to 10 years in the wild. The Impact of Captivity on Otter Longevity. Captivity provides a controlled environment where many of the challenges faced by wild otters are mitigated.

The fossil remnants of many freshwater otters date back to the Miocene (5 to 23 million years ago). Scientists believe that sea otters descended from fish-eating, otter-like ancestors about five to seven million years ago, during the late Miocene and early Pliocene period.