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The adult worms are free-living, but the larvae are parasitic on arthropods, such as beetles, cockroaches, mantises, orthopterans, and crustaceans. [4] About 351 freshwater species are known [ 5 ] and a conservative estimate suggests that there may be about 2000 freshwater species worldwide. [ 6 ]
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Some birds possess specialized hair-like feathers called rictal bristles around the base of the beak which are sometimes referred to as whiskers. The whiskered auklet ( Aethia pygmaea ) has striking, stiff white feathers protruding from above and below the eyes of the otherwise slate-grey bird, and a dark plume which swoops forward from the top ...
Adult Dermestidae are generally small beetles (1–12 mm long), rounded to oval in shape, with hairy or scaly elytra that may form distinctive and colourful patterns. [3] [4] Except in genera Dermestes and Trichelodes, there is a single ocellus in the middle of the head.
Hackles are the erectile plumage or hair in the neck area of some birds and mammals. In birds, the hackle is the group of feathers found along the back and side of the neck. [1] The hackles of some types of chicken, particularly roosters, are long, fine, and often brightly coloured. [2] These hackles may be used in fly fishing as lures. [2]
Keeled scales of a colubrid snake (banded water snake; Nerodia fasciata) In zoology, a scale (Ancient Greek: λεπίς, romanized: lepís; Latin: squāma) is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopterans (butterflies and moths), scales are plates on the surface of the insect wing, and provide ...
Barczyk, who turned a childhood fascination with snakes into multiple reptile-related businesses and more than 15 million social media followers worldwide, died Sunday at 54 at his home in Warren.
[7] [8] [9] Dinosaur species very close to the origin of birds have been shown to have had "hind wings" made of feathers growing from these areas, suggesting that the acquisition of feathers in dinosaurs was a whole-body event. [9] The bottoms of bird feet are covered in small, keeled scale-like structures known as reticulae.