I'm afraid the answer is "all of them." And their biggest hazards are things we've created, like fishing nets and undersea telephone cables.
Sperm whales have 42 chromosomes in total. This includes 21 pairs of chromosomes.
Sperm whales have 42 (2n) chromosomes.
Baleen whales are technically larger than tooth whales because the blue whale is the largest animal on the planet, but the sperm whale, which is a tooth whale, is pretty large.The baleen whales are normally larger, except for the sperm whale, which can be as long as many baleen whales.
An Sperm Whales can dive for about 5 mintures
No documented cases of sperm whales eating eachother; they prey on squid mostly, from small to colossal.
Sperm whales mainly eat giant squid.
The sperm whale (Physeter macrocephalus), is a whale.
Sperm whales mainly eat giant squid.
sperm whales can stay underwater for 90 minutes
Sperm whales -like all whales - are warm blooded
Sperm Whales are not scary, it just depends on the person.
Sperm Whales!