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The most prominent behavior of all during the heat of the rut is fighting, where bucks show their true dominance to others. In fighting, bucks usually battle against similar-sized deer, and small bucks do not normally challenge mature large ones: more often than not, smaller bucks fear the more mature bucks and leave or avoid the dominant deer ...
A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.
In his conclusion, Halevi maintained that Adam was the first human in this world but left open other possibilities: "If, after all, a believer in the Law finds himself compelled to admit an eternal matter and the existence of many worlds prior to this one, this would not impair his belief that this world was created at a certain epoch, and that ...
As in other mammals, human thermoregulation is an important aspect of homeostasis. In thermoregulation, body heat is generated mostly in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. [1] Humans have been able to adapt to a great diversity of climates, including hot humid and hot arid.
The human practice of mating and artificially inseminating domesticated animals is part of animal husbandry. In some terrestrial arthropods , including insects representing basal (primitive) phylogenetic clades, the male deposits spermatozoa on the substrate, sometimes stored within a special structure.
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Procreative biological processes of humanity Part of a series on Sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW ZO Temperature-dependent Haplodiploidy Heterogametic sex Homogametic sex Sex chromosome X chromosome Y ...
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He urged respect for animals, because he believed that humans and non-humans had the same kind of soul, one spirit that pervades the universe and makes us one with animals. [4] The souls were indestructible, made of fire and air, and were reincarnated from human to animal, or vice versa, the so-called transmigration of the soul. He was a ...