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The fennec fox's large ears help keep it cool: when the blood vessels dilate, blood from the body cycles in and dissipates over the expanded surface area. [1]A xerocole (from Greek xēros / ˈ z ɪ r oʊ s / 'dry' and Latin col(ere) 'to inhabit'), [2] [3] [4] is a general term referring to any animal that is adapted to live in a desert.
A number of rodents live at high altitude, including deer mice, guinea pigs, and rats. Several mechanisms help them survive these harsh conditions, including altered genetics of the hemoglobin gene in guinea pigs and deer mice. [33] [34] Deer mice use a high percentage of fats as metabolic fuel to retain carbohydrates for small bursts of energy ...
Colugos are proficient gliders, and thought better adapted for flight than any other gliding mammal. They can travel as far as 70 m (230 ft) from one tree to another without losing much altitude, [10] with a Malayan colugo (Galeopterus variegatus) individual having been observed traveling about 150 m (490 ft) in one glide. [11]
As you can see, our resident animals adapt and change for the winter season. Therefore, they fit Meggison’s and Darwin’s rules/statements and we can expect many of them to successfully survive ...
Adaptation affects all aspects of the life of an organism. [24] The following definitions are given by the evolutionary biologist Theodosius Dobzhansky: 1. Adaptation is the evolutionary process whereby an organism becomes better able to live in its habitat or habitats. [25] [26] [27] 2.
The erythrocytes (red blood cells) of the common raven are elliptical with a centrally located oval nucleus. Avian blood has counts of between 2.5 and 4 million red blood cells per cubic millimetre. The red blood cells of birds are larger than those of mammals and have a short life span of 28 to 45 days. [17]
The aardwolf (Proteles cristatus [3]) is an insectivorous hyaenid species, native to East and Southern Africa.Its name means "earth-wolf" in Afrikaans and Dutch. [4] [5] It is also called the maanhaar-jackal [6] [7] (Afrikaans for "mane-jackal"), termite-eating hyena [8] and civet hyena, based on its habit of secreting substances from its anal gland, a characteristic shared with the African civet.
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