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The act of eating one's own offspring, or filial cannibalism, may be an adaptive behaviour for a parent to use as an extra source of food. Parents may eat part of a brood to enhance the parental care of the current brood. Alternatively, parents may eat the whole brood to cut their losses and improve their future reproductive success. [79]
The 100 species with longest life-spans recorded and verified [1] This is a list of the longest-living biological organisms: the individual(s) (or in some instances, clones) of a species with the longest natural maximum life spans. For a given species, such a designation may include:
The provision of care, by either males or females, is presumed to increase growth rates, quality, and/or survival of young, and hence ultimately increase the inclusive fitness of parents. [2] [3] [4] In a variety of vertebrate species (e.g., about 80% of birds [5] and about 6% of mammals), [6] both males and females invest heavily in their ...
Twinning, or, having two babies per pregnancy, is extremely rare in elephants. Elephant gestations result in twins about 1% of the time. Unfortunately, even when both calves survive birth, both ...
Gestation, Incubation, and Longevity of Selected Animals; David Crystal, The Cambridge Factfinder Cambridge: Cambridge University Press, 1998 (84). Online animal encyclopedia; Study finds wide range in pregnancy length; van Aarde, Rudi J. (1984). "Aardvark". In Macdonald, David (ed.). The Encyclopedia of Mammals. New York, NY: Facts on File ...
Frank and Louie, sometimes referred to as Frankenlouie [1] (September 8, 1999 – December 4, 2014), was a diprosopus (also known as "janus" or "two-faced") cat known for his unusual longevity.
Vertebrate maternal behavior is a form of parental care that is specifically given to young animals by their mother in order to ensure the survival of the young. [1] Parental care is a form of altruism, which means that the behaviors involved often require a sacrifice that could put their own survival at risk. [1]
1944 Why Peter Rabbit's Ears Are Long and Three Other Stories; 1945 At the Smiling Pool; 1945 The Big Book of Burgess Nature Stories; 1946 The Crooked Little Path; 1947 The Dear Old Briar-Patch; 1949 Along Laughing Brook; 1949 Baby Animal Stories; 1949 Nature Almanac; 1950 A Thornton Burgess Picture Story Book; 1950 At Paddy the Beaver's Pond