The teeth in its upper jaw never erupt. As it eats its prey, usually squid , whole it needs no teeth to feed. Their teeth may instead be used for fighting between males or bringing food back to calves. Females and calves live together in pods and females stagger their dives so that calves are not left alone and exposed to danger.
Sperm whale - Wikipedia
The inspiration for the white whale of Moby Dick, sperm whales have the largest heads, biggest brains, and make the loudest sound of any animal on Earth. Region: Arctic. Destinations: Lofoten, Greenland, Svalbard, Iceland. Sperm whales usually eat a little over kg almost 2, pounds of food per day. To find their prey preferably giant squid , they dive somewhere between and 1, metres and 4, feet , though they can go as deep as 2 km 1. An average dive lasts about an hour.
What is sperm whales predators?
The dwarf sperm whale Kogia sima is a sperm whale that inhabits temperate and tropical oceans worldwide, in particular continental shelves and slopes. It was first described by biologist Richard Owen in , based on illustrations by naturalist Sir Walter Elliot. The species was considered to be synonymous with the pygmy sperm whale Kogia breviceps from until The dwarf sperm whale is a small whale, 2 to 2. Its appearance is very similar to the pygmy sperm whale, distinguished mainly by the position of the dorsal fin on the body—nearer the middle in the dwarf sperm whale and nearer the back in the other.
If a whale responds to man-made noise by changing behaviour or vocalisations or movement… what does this mean biologically for the animal? This new study has created a relative index of disturbance levels by looking at a natural disturbance response: the anti-predator response. Killer whales predate on sperm whales. For example: animals can reduce their risk of predation by changing their behaviour ie: changing from foraging, resting or socialising all fitness enhancing activities to fleeing from a predator. Sperm whales respond to killer whale calls by changing their movement and avoiding the area, stopping feeding activities and by producing more social sounds and grouping together.