Search results
Results From The WOW.Com Content Network
The venom-delivering spur is found only on the male's hind limbs. The platypus is one of the few living mammals to produce venom.The venom is made in venom glands that are connected to hollow spurs on their hind legs; it is primarily made during the mating season. [1]
The body and the broad, flat tail of the platypus are covered with dense, brown, biofluorescent fur that traps a layer of insulating air to keep the animal warm. [21] [26] [33] The fur is waterproof, and textured like that of a mole. [34] The platypus's tail stores fat reserves, an adaptation also found in the Tasmanian devil. [35]
A stinger (or sting) is a sharp organ found in various animals (typically insects and other arthropods) capable of injecting venom, usually by piercing the epidermis of another animal. An insect sting is complicated by its introduction of venom , although not all stings are venomous.
Aname platypus is a species of mygalomorph spider in the Anamidae family. It is endemic to Australia . It was described in 1875 by German arachnologist Ludwig Carl Christian Koch .
The monotremes, including the semi-aquatic platypus and the terrestrial echidnas, are one of the only groups of mammals that have evolved electroreception. While the electroreceptors in fish and amphibians evolved from mechanosensory lateral line organs, those of monotremes are based on cutaneous glands innervated by trigeminal nerves .
The stinger of a stingray is known also as the spinal blade. It is located in the mid-area of the tail and can secrete venom. The ruler measures 10cm. Stingrays are not usually aggressive and ordinarily attack humans only when provoked, such as when they are accidentally stepped on. [34] Stingrays can have one, two or three blades.
In order to sting their victims, they jerk their tails as the stinger falls off and stays in the wound that they have created. The stinger of a whiptail stingray is pointy, sharp with jagged edges. They range in size from 0.18 to 2.0 m (0.59 to 6.56 ft) or more across in the case of the smalleye stingray and giant freshwater stingray.
The monotremes have a sex determination system different from that of most other mammals. [2] In particular, the sex chromosomes of a platypus are more like those of a chicken than those of a therian mammal. [3] The mammary glands of mammals are specialized to produce milk, a liquid used by newborns as their primary source of nutrition.