Like most odontocetesthe males are larger than the females. Some suspect that spermaceti helps regulate buoyancy while others think it evolved as a shock-absorber to protect the brains of hormonal, head-butting males during mating season. Orcas go after entire sperm whale pods and will try to take a calf or even a female, but the male sperm whales are generally too big and aggressive to be hunted. Though they're often described as "rats with wings" a phrase popularized by the movie Stardust Memoriespigeons are actually pretty cool. A multi-colored bird with iridescent feathers, this near-threatened creature is found on small islands in the South Pacific and off Asia. If you see a beached whale corpse, you might wanna consider stepping back. Interestingly, in these runs, the pigeons were quicker to get started on that second task after the period ended.
Other females will assist with the birth which is quite fascinating for animals to be a part of.
No matter how impressive their results, "I don't anticipate that pigeons, no matter how good they become at pathology or radiology, will be playing a role in actual patient care—certainly for the foreseeable future," study co-author Richard M. Sperm whales or Physeter macrocephalus are part of the Odontoceti toothed whales. Their navigational skills also make pigeons great long-distance messengers. Mammograms proved to be more of a challenge, however; the birds could memorize signs of cancer in the images they were trained on but could not identify the signs in new images. Some pigeons respond by rolling away in midair, and on a spiraling bird, white rump feathers can be eye-catching, which means that a patch of them may divert a hungry raptor's focus long enough to make the carnivore miscalculate and zip right past its intended victim.