Search results
Results from the WOW.Com Content Network
Cryptids are animals that cryptozoologists believe may exist somewhere in the wild, but whose present existence is disputed or unsubstantiated by science.Cryptozoology is a pseudoscience, which primarily looks at anecdotal stories, and other claims rejected by the scientific community.
They are more-or-less cup-shaped animals, ranging from 10 to 30 centimetres (3.9 to 11.8 in) in height, with sturdy skeletons made of glass-like silica spicules, fused to form a lattice. [4] [5] In some glass sponges such as members of the genus Euplectela, these structures are aided by a protein called glassin.
The skeletons were formed by ancient peoples who joined together body parts from animal carcasses of different species. The practice is believed to have been done as an offering to their gods. [ 1 ]
The phylum Porifera is further divided into classes mainly according to the composition of their skeletons: [17] [29] Hexactinellida (glass sponges) have silicate spicules, the largest of which have six rays and may be individual or fused. [17] The main components of their bodies are syncytia in which large numbers of cell share a single ...
Discarded exoskeleton of dragonfly nymph Exoskeleton of cicada attached to a Tridax procumbens (colloquially known as the tridax daisy)An exoskeleton (from Greek έξω éxō "outer" [1] and σκελετός skeletós "skeleton" [2] [3]) is a skeleton that is on the exterior of an animal in the form of hardened integument, which both supports the body's shape and protects the internal organs ...
A skeleton is the structural frame that supports the body of most animals.There are several types of skeletons, including the exoskeleton, which is a rigid outer shell that holds up an organism's shape; the endoskeleton, a rigid internal frame to which the organs and soft tissues attach; and the hydroskeleton, a flexible internal structure supported by the hydrostatic pressure of body fluids.
Leonardo da Vinci made notes for a planned anatomical treatise in which he intended to compare the hands of various animals including bears. [4] Pierre Belon, a French naturalist born in 1517, conducted research and held discussions on dolphin embryos as well as the comparisons between the skeletons of birds to the skeletons of humans. His ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 December 2024. Extinct species of canine mammal For the fictional creature in the A Song of Ice and Fire series, see Direwolf (Game of Thrones). For other uses, see Dire wolf (disambiguation). Dire wolf Temporal range: Late Pleistocene – early Holocene (125,000–9,500 years ago) PreꞒ Ꞓ O S D C ...