Sea otters are North America’s smallest marine mammal, weighing just 30 to 100 pounds, but their appetites are huge. They burn calories at three times the rate expected for their size, chomping on ...

This is read by an automated voice. Please report any issues or inconsistencies here. More than 400 marine mammals have been reported stranded or sickened along California’s Central Coast since June.

In a small, rented lab in the port of Los Angeles in May, Keith Matassa was working through a backlog of bodies on ice. Using a surgical knife, he carefully removed a California sea lion fetus from a ...

Huge die-offs of elephant seals occurred after the virus gained nearly 20 troublesome new mutations, scientists found. By Apoorva Mandavilli Elephant seals in South America died in massive numbers ...

Luciana Gallo of BIOMAR-CONICET and Marcela Uhart of UC Davis sample for highly pathogenic H5N1 among cormorants (by shore) and terns (in greenery) at Punta Leon in Argentina in November 2023. The ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If marine mammals want to sleep, they can't just close their eyes and drift away for the night, ...

View of a dolphin in the Dolphin Harbor, at the Miami Seaquarium, in Virginia Key, which closed on Oct. 12, 2025, after 70 years in business. Pedro Portal [email protected] For 70 years, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Wildlife officials are warning the public of ...

Elephant seals lie dead on a beach in Argentina following an outbreak of avian influenza in the region. (Maxi Jonas) The highly pathogenic avian influenza virus H5N1 has adapted to spread between ...

Their fur is so soft it almost led to their extinction, but otters’ recovery has been a boon to Pacific kelp forests, a key habitat for other sealife Sea otters use their agile, grippy forepaws to ...

Avian influenza virus H5N1 has adapted to spread between birds and marine mammals, finds a new study. The highly pathogenic avian influenza virus H5N1 has adapted to spread between birds and marine ...