"killer whale holding a knife." The new study has already helped highlight crucial differences between the two main types of ...

Males are bigger than females, but they both vary in size and weight. The largest orca ever recorded was a staggering 32 feet (9.8 meters) long and weighed 22,000 lbs. (10,000 kilograms).

An curved arrow pointing right. The killer whale Tokitae, also known as Lolita, may finally be released after more than 50 years in captivity in the world's smallest orca enclosure. Billionaire ...