5 days ago · Animal communication, process by which one animal provides information that other animals can incorporate into their decision making. The vehicle for the provision of this information is …

Migration, in ethology, the regular, usually seasonal, movement of all or part of an animal population to and from a given area. Familiar migrants include many birds; hoofed animals, especially in East …

Mar 21, 2026 · Animal rights, moral or legal entitlements attributed to nonhuman animals, usually because of the complexity of their cognitive, emotional, and social lives or their capacity to …

Animal reproductive system, any of the organ systems by which animals reproduce, including gonads (sex organs), associated ducts and glands, and adaptations that aid in the union of …

Animal behaviour, the concept, broadly considered, referring to everything animals do, including movement and other activities and underlying mental processes. Human fascination with it probably …

Mar 21, 2026 · Animal rights - Activism, Legislation, Ethics: The fundamental principle of the modern animal rights movement is that many nonhuman animals have basic interests that deserve …

Apr 15, 2026 · Animal, any of a group of multicellular eukaryotic organisms thought to have evolved independently from the unicellular eukaryotes. Animals differ from other multicellular eukaryotes, the …

Certain animals hibernate because food supplies become scarce during the winter months. By going into a long deep sleep, they bypass this period completely, waking up when food becomes more plentiful. …

Mar 24, 2026 · Seed - Animal Dispersal, Germination, Fruits: Snails disperse the small seeds of a very few plant species (e.g., Adoxa). Earthworms are more important as seed dispersers. Many intact …

Life span - Animal Longevity, Aging, Adaptations: Much of what is known of the length of life of animals other than man derives from observations of domesticated species in laboratories and zoos. One has …