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In the lungless salamanders (family Plethodontidae and the clawed salamanders in the family of Asiatic salamanders), no lungs or gills are present, and gas exchange mostly takes place through the skin, known as cutaneous respiration, supplemented by the tissues lining the mouth. To facilitate this, these salamanders have a dense network of ...
These amphibians usually sequester toxins from animals and plants on which they feed, commonly from poisonous insects or poisonous plants. Except certain salamandrid salamanders that can extrude sharp venom-tipped ribs, [1] [2] and two species of frogs with venom-tipped bone spurs on their skulls, amphibians are not known to actively inject venom.
While exciting to see, the spotted salamander should not be handled by humans if at all possible. The amphibian’s skin has a sensitive, slimy coating, which, if removed through handling, could ...
The fire salamander (Salamandra salamandra) is a common species of salamander found in Europe. ... some are potentially dangerous to human life.
A skin-eating fungus is now a severe threat to salamander populations in Europe, according to a new study. Batrachochytrium salamandrivorans, or Bs, is deadly to almost all salamanders but appears ...
The rough-skinned newt Taricha granulosa of the Pacific Northwest produces more than enough tetrodotoxin to kill an adult human, and some Native Americans of the Pacific Northwest used the toxin to poison their enemies. [15] However, the toxins are only dangerous if ingested or otherwise enter the body; for example, through a wound.
The Chinese giant salamander eats aquatic insects, fish, frogs, crabs, and shrimp. [10] They hunt mainly at night. As they have poor eyesight, they use sensory nodes on their heads and bodies to detect minute changes in water pressure, enabling them to find their prey.
Salamandridae is a family of salamanders consisting of true salamanders and newts. Salamandrids are distinguished from other salamanders by the lack of rib or costal grooves along the sides of their bodies and by their rough skin. Their skin is very granular because of the number of poison glands. They also lack nasolabial grooves.