1,300-pound great white shark 'Bob' pings off Florida coast. Here's where and what to know
A 1,300-pound great white shark, tagged by OCEARCH, surfaced off Florida's east coast Saturday night. The 13-foot shark is a repeat visitor.
World Wildlife Fund6 小时
Unicorn of the Sea: Narwhal Facts
Some narwhals have up to two tusks, while others have none. The spiraled tusk juts from the head and can grow as long at 10 feet. Unlike some whale species that migrate, narwhals spend their lives in ...