Gestation in Sperm Whale females lasts about 14 to 16 months. A sigle calf is produced at the end of gestation. Lactation proceeds for 19 to 42 months, but calves may suckle up to 13 years. Calves can suckle from females other than their mothers. Females generally have birth intervals of three to six years between calf birth.
Fish use gills, which extracts oxygen from the water. Amphibians and whales breath oxygen, whales can hold their breath for hours at a time, explaining how sperm whales can hunt at great depths for periods of time.
Sperm Whales can be seen off the Kaikoura coast all year round as it is a feeding area for them but their distribution and location varies due to prey availability. May, June and July is when the Sperm whales can be seen regularly closest to shore.
sperm whales have been known to hold their breath for more than an hour.
Whale Watch Kaikoura is different from other whale watching companies because of its unique location. The Kaikoura Canyon is just offshore from the Kaikoura peninsula and is over 1300m deep. This trench is full of nutrients that brings all sorts of sea wildlife, big and small, to it. This means that whales (in particular, sperm whales) are almost guaranteed to be sighted here year round, whereas many places (including the east coast of Australia) experience an annual migration for only a few months a year. The difference between watching sperm whales and watching humpback whales is that humpbacks are much more acrobatic. A whale watch with humpbacks may involve the whales breaching, whereas a watch with sperm whales is much calmer. At the same time, sperm whales like to dive quite often, so you are very likely to see their tails as they dive.
One at a time.
Men produce sperm all the time in their testes. If these are not ejaculated, they get reabsorbed after a time so good sperm should always be "ready". A low sperm count means that, as compared to other men of his age, your husband does not seem to be making as many sperm in his testes as these other men. When he ejaculates, the seamen he produces does not contain as many sperm as it should. This could affect his ability to father children. If you and your husband are wanting children you should both go and see a specialist Doctor together and investigate the problem further.
One baby at a time.
to ensure the fertilization of the egg with the mostcompatible sperm
millions of sperm
Hundreds of millions of sperm
so it can go to the overis
Sperm cells can be produced during the lifetime of a male. Thus, there's different amounts of sperm cells in a male's testes all the time.