Extant animals size

[SameerluvAnimals]

The Cuvier's beaked whale is the world's deepest-diving mammal. It grows to about 5 – 7 m (16 – 23 ft) in length and weigh about 2 - 3 tonnes. These whales dive nearly 10,000 feet (3000 meters), that's close to seven times the height of the Empire State Building.

In 2014, scientists reported that they had used satellite-linked tags to track Cuvier's beaked whales off the coast of California, and found the animals dived up to 2,992 m (9,816 feet) below the ocean surface and spent up to two hours and 17 minutes underwater before resurfacing, which represent both the deepest and the longest dives ever documented for any mammal. The sperm whale holds the previous record for the deepest-dive of 7,380 feet (2,250 meters).