Sei whales are an endangered species and the third-largest whale species, reaching 40 to 60 feet in length and up to 50 tons as adults, according to the stranding center.

A dead whale found floating in Newark Bay was identified as an endangered sei whale after a necropsy, officials say.

A massive whale found dead along a Queens shoreline showed signs of a violent impact, officials said. A necropsy was completed on the 45-foot male sei whale that washed ashore on Rockaway Beach on ...

Whales around the world are washing up on our coastlines. Learn more about why this is happening and what you can do to help.

A massive whale carcass about the size of a city bus washed up on a Queens beach Thursday, jaw-dropping photos show. The 40-foot-long Sei whale was discovered stranded on Rockaway Beach near Beach ...