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  2. Behavioral sink - Wikipedia

    en.wikipedia.org/wiki/Behavioral_sink

    Individual rats would rarely eat except in the company of other rats. As a result extreme population densities developed in the pen adopted for eating, leaving the others with sparse populations. In the experiments in which the behavioral sink developed, infant mortality ran as high as 96 percent among the most disoriented groups in the population.

  3. Animal testing on rodents - Wikipedia

    en.wikipedia.org/wiki/Animal_testing_on_rodents

    For example, researchers have found that many rats and mice in laboratories are obese from excess food and minimal exercise which alters their physiology and drug metabolism. [31] Many laboratory animals, including mice and rats, are chronically stressed which can also negatively affect research outcomes and the ability to accurately ...

  4. Senticolis - Wikipedia

    en.wikipedia.org/wiki/Senticolis

    The genus Senticolis is monotypic, containing the sole species Senticolis triaspis, also known as the green rat snake. The species is endemic to Central America , Mexico , southern Arizona , and southern New Mexico .

  5. Food chain - Wikipedia

    en.wikipedia.org/wiki/Food_chain

    Food chain in a Swedish lake. Osprey feed on northern pike, which in turn feed on perch which eat bleak which eat crustaceans.. A food chain is a linear network of links in a food web, often starting with an autotroph (such as grass or algae), also called a producer, and typically ending at an apex predator (such as grizzly bears or killer whales), detritivore (such as earthworms and woodlice ...

  6. Rat snake - Wikipedia

    en.wikipedia.org/wiki/Rat_snake

    While rat snakes are being hunted during the day, being more active at night due to warmer temperatures may allow rat snakes to be less vulnerable to predation from hawks. [9] A warming climate also enhances food digestion in rat snakes thereby making them more efficient, which enables rat snake individuals to grow larger in size and allowing ...

  7. Ptyas nigromarginata - Wikipedia

    en.wikipedia.org/wiki/Ptyas_nigromarginata

    Ptyas nigromarginata, commonly known as the green rat snake or black-bordered rat snake, is a species of snake in the family Colubridae. The species is endemic to ...

  8. Ptyas mucosa - Wikipedia

    en.wikipedia.org/wiki/Ptyas_mucosa

    Ptyas mucosa, commonly known as the Oriental rat snake, [2] dhaman or Indian rat snake, [4] is a common non-venomous species of colubrid snake found in parts of South and Southeast Asia. Dhamans are large snakes. Typical mature total length is around 1.5 to 1.95 m (4 ft 11 in to 6 ft 5 in) though some exceed 2 m (6 ft 7 in).

  9. Gonyosoma oxycephalum - Wikipedia

    en.wikipedia.org/wiki/Gonyosoma_oxycephalum

    Gonyosoma oxycephalum, known commonly as the arboreal ratsnake, the red-tailed green rat snake, and the red-tailed racer, is a species of snake in the family Colubridae. The species is endemic to Southeast Asia .