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A rook skull The rook is a very social bird; in the evenings they gather in large flocks, often in thousands. Rooks are highly gregarious birds and are generally seen in flocks of various sizes. Males and females pair-bond for life and pairs stay together within flocks.
In mammalian outer hair cells, the varying receptor potential is converted to active vibrations of the cell body. This mechanical response to electrical signals is termed somatic electromotility; [13] it drives variations in the cell's length, synchronized to the incoming sound signal, and provides mechanical amplification by feedback to the traveling wave.
The males are called Mermen and the females are called Mermaids. Auvekoejak – A merman from Inuit folklore of Greenland and northern Canada that has fur on its fish tail instead of scales. Ceasg – A Scottish mermaid. Sirena – A mermaid from Philippine folklore. Siyokoy – Mermen with scaled bodies from Philippine folklore. It is the male ...
Horn is the outer covering of a bony outgrowth on an animal's skull, such as a cow. It consists of a mass of very hard, hair-like filaments called keratin, cemented together around a spongy internal bone core. This layering effect continues to grow over time, resulting in a cone-within-cone structure.
Skull in situ Human head skull from side Anatomy of a flat bone – the periosteum of the neurocranium is known as the pericranium Human skull from the front Side bones of skull. The human skull is the bone structure that forms the head in the human skeleton. It supports the structures of the face and forms a cavity for the brain. Like the ...
A pair of horns on a male impala Anatomy of an animal's horn. A horn is a permanent pointed projection on the head of various animals that consists of a covering of keratin and other proteins surrounding a core of live bone.
Hyracodon's skull was large in comparison to the rest of the body. Hyracodon's dentition resembled that of later rhinocerotoids, but it was a much smaller animal and differed very little in appearance from the primitive horses of which it was a contemporary (32–26 million years ago). It had a short, broad snout and its long, slender limbs had ...
Zooarcheologists can find out information like the species the animal is, the age the animal was when it died, and what its sex was. [11] Some common faunal remains found at sites include, as stated above, bones, shells, hair, chitin, scales, hides, proteins and DNA. These are often found in piles of waste left behind.