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  2. Chemical defense - Wikipedia

    en.wikipedia.org/wiki/Chemical_defense

    The ink, when released into the water, physically obscures the sea hare from their predator. The opaline fog is a mixture of chemicals that mimic the signals of the predator's food and therefore acts as a food stimulus. [61] The goal of the opaline chemical cloud is to supply a stronger food stimulus than the sea hare itself provides. [61]

  3. Venomous mammal - Wikipedia

    en.wikipedia.org/wiki/Venomous_mammal

    The hairs in this flank area are highly specialised; at the tips they are like ordinary hair, but are otherwise spongy, fibrous, and absorbent. The rat is known to deliberately chew the roots and bark of the poison-arrow tree (Acokanthera schimperi), so-called because human hunters extract a toxin, ouabain, to coat arrows that can kill an ...

  4. Zoopharmacognosy - Wikipedia

    en.wikipedia.org/wiki/Zoopharmacognosy

    A cat eating grass – an example of zoopharmacognosy. Zoopharmacognosy is a behaviour in which non-human animals self-medicate by selecting and ingesting or topically applying plants, soils and insects with medicinal properties, to prevent or reduce the harmful effects of pathogens, toxins, and even other animals.

  5. Parasitism - Wikipedia

    en.wikipedia.org/wiki/Parasitism

    A fish parasite, the isopod Cymothoa exigua, replacing the tongue of a Lithognathus. Parasitism is a close relationship between species, where one organism, the parasite, lives (at least some of the time) on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. [1]

  6. Zoology - Wikipedia

    en.wikipedia.org/wiki/Zoology

    Zoology (UK: / z u ˈ ɒ l ə dʒ i / zoo-OL-ə-jee, US: / z oʊ ˈ ɒ l ə dʒ i / zoh-OL-ə-jee) [1] is the scientific study of animals.Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems.

  7. Sentinel species - Wikipedia

    en.wikipedia.org/wiki/Sentinel_species

    Animal sentinels must have measurable responses to the hazard in question, whether that is due to the animal's death, disappearance, or some other determinable aspect. [1]: 34 Many of these species are ideally unendangered and easy to handle. It is important that the species' range overlap with the range being studied. [15]

  8. 12 animals who use camouflage to conceal themselves - AOL

    www.aol.com/news/2017-05-05-12-animals-who-use...

    Surviving in the wild is no easy feat, but thanks to evolution, many animals evade their predators with a clever deception of the eyes. Since the beginning of time animals have either adapted or ...

  9. Animal - Wikipedia

    en.wikipedia.org/wiki/Animal

    Animal body lengths range from 8.5 μm (0.00033 in) to 33.6 m (110 ft). They have complex ecologies and interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology.