Sperm whales increase levels of primary production and carbon export by depositing iron-rich faeces into surface waters of the Southern Ocean. They are relatively abundant from the poles to the equator and are found in all the oceans. In particular, colonization of the Atlantic was revealed to have occurred multiple times during this expansion of their range. The footage was shown on Chasing Giants: Analysis of the mitochondrial DNA of giant squid individuals from all over the world has found that there is little variation between individuals across the globe just differing genetic base pairs out of 20, Cephalopods have been rocking my world since I was in grade school. They can also move quickly by expanding the cavity to fill it with water, then contracting muscles to jet water through the siphon.
Retrieved 12 January Aquarium of the Pacific. The females cooperate to protect and nurse their young. They conjectured that sperm whales use vision to hunt squid, either by detecting silhouettes from below or by detecting bioluminescence. The heavy and powerful tail of an adult whale can deliver lethal blows. To prevent the tentacles from rotting , scientists covered them in ice packs, and bathed the mantle in water.
Sperm whale - Wikipedia
Retrieved 26 December A World Guide , Mark Norman writes: Sperm Whales , Voyageur Press, p. The photographs showed an aggressive hunting pattern by the baited squid, leading to it impaling a tentacle on the bait ball's hooks.
RARE PHOTOS: Giant Squid Eaten by Sperm Whale
Description: They occurred often in necklaces. Like the age-rings in a tree, the teeth build distinct layers of cementum and dentine as they grow. The grooves between the knobs trap a consistent film of air, making it an excellent sound mirror. Wikimedia Commons has media related to Architeuthis. Wikispecies has information related to Physeter macrocephalus.