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A domestic cat's retractable claw in protracted position. A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes (mammals, reptiles, birds). Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or tarsus for gripping a surface as they walk.
This list of colossal squid specimens and sightings is a timeline of recorded human encounters with members of the genus Mesonychoteuthis, popularly known as colossal squid. It includes animals that were caught by fishermen, recovered (in whole or in part) from sperm whales and other predatory species, as well as those reliably sighted at sea ...
The foot (pl.: feet) is an anatomical structure found in many vertebrates.It is the terminal portion of a limb which bears weight and allows locomotion.In many animals with feet, the foot is a separate [clarification needed] organ at the terminal part of the leg made up of one or more segments or bones, generally including claws and/or nails.
Size compared with a human. Deinonychus possessed large "hands" with three claws on each forelimb. The first digit was shortest and the second was longest. Each hind foot bore a sickle-shaped claw on the second digit, which was probably used during predation. [10] No skin impressions have ever been found in association with fossils of Deinonychus
A large number of human gene defects can cause ectrodactyly. The most common mode of inheritance is autosomal dominant with reduced penetrance, while autosomal recessive and X-linked forms occur more rarely. [9] Ectrodactyly can also be caused by a duplication on 10q24.
Head louse gripping a human hair. Six legs project from the fused segments of the thorax. [9] As is typical in the Anoplura, these legs are short and terminate with a single claw and opposing "thumb". [9] Between its claw and thumb, the louse grasps the hair of its host. [9]
Range and density of non-human primates. Primates is a diverse order of placental mammals which includes monkeys, lemurs, galagos, lorisids, tarsiers, and apes (including humans). Members of this order are called primates. The order currently comprises 505 extant species, which are grouped into 81 genera. The majority of primates live in South ...
A rough translation is "immobile nails", a reference to the cheetah's limited ability to retract its claws. [7] A similar meaning can be obtained by the combination of the Greek prefix a– (implying a lack of) and κῑνέω (kīnéō) meaning 'to move' or 'to set in motion'. [8] The specific name jubatus is Latin for 'crested, having a mane ...