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A dragonfly in its radical final moult, metamorphosing from an aquatic nymph to a winged adult.. In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is a process by which an animal casts off parts of its body to serve some beneficial purpose, either at specific times of the year, or at specific points in ...
Birds cannot use their beaks to apply preen oil to their own heads. Instead, many use their feet in an action called scratch-preening. Once they have gathered preen oil on their beak, they scrape a foot across their bill to transfer the oil, and then scratch the oil into the feathers on their head. [28] Longer-necked birds may rub their head ...
One of the animals shown is a two-headed snake (conjoined twin snakes), with one head on each end, much like an amphisbaena. The image is captioned, " two headed snakes of India are harmless ". [ 8 ] It is possible a sighting of an animal like this was the origin of the amphisbaena, or that the Greek mythological creature is used, as well as ...
Mountain goats molt in spring by rubbing against rocks and trees, with the adult billies shedding their extra wool first and the pregnant nannies shedding last. Their coats help them to withstand winter temperatures as low as −46 °C (−51 °F) and winds of up to 160 kilometres per hour (99 mph).
The most anterior plate is crescent-shaped, and is known as the cephalic plate (sometimes called a head plate, despite the absence of a complete head). The most posterior plate is known as the anal plate (sometimes called the tail plate, although chitons do not have tails.)
The New York Times reports that even though the church officially broke with the age-old practice -- you do something good, and the Church will help absolve you -- in 1960, the Pope has quietly ...
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Cephalization is both a characteristic feature of any animal that habitually moves in one direction, thereby gaining a front end, and an evolutionary trend which created the head of these animals. In practice, this primarily means the bilaterians , a large group containing the majority of animal phyla. [ 2 ]