Morning Overview on MSN: Study finds sperm whales use an alphabet-like code with "vowels"
Off the coast of Dominica, a small Caribbean island nation, researchers have spent years lowering hydrophones into deep water and tagging sperm whales with acoustic sensors, capturing thousands of the ...
IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This long, slender sperm whale tooth ...
CNN: ‘And then we saw the little head.’ Scientists witness rare sperm whale birth
When marine biologist Shane Gero spotted a plume of blood spreading across the water where a group of sperm whales had gathered in the Caribbean, he feared the worst — injury to one of the whales, ...
‘And then we saw the little head.’ Scientists witness rare sperm whale birth
Sperm (pl.: sperm or sperms) is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction (forms in which there is a larger, female reproductive cell and a smaller, male one). Sperm cells contribute approximately half of the nuclear genetic information to the diploid offspring (excluding, in most cases, mitochondrial DNA).
Sperm are male sex cells. You start to produce sperm around puberty. Learn more about their anatomy and function.
How Is Sperm Created? What is Sperm? Sperm is the male reproductive cell or germ cell produced and released by the male reproductive organs. These cells are essential for fertilization and the creation of new life. Sperm cells are tiny, with an average size of median length (4.3 μm), and width (2.9 μm). Each mature sperm cell is composed of a head, midpiece, and tail. The sperm head contains ...