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Evidenced by large pottery remnants that included fish and animal bones, Ayman Ashmawi, head of the Egyptian Archaeological Sector of the Supreme Council of Antiquities, confirmed the use of some ...
Selachii. Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and they have pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha[ 1 ] (or Selachii) and are the sister group to the Batoidea (rays and kin).
The smell from the outdoor shed and the home "were emitting odors associated with organic matter that are attracting varmints and black bears," Garcia wrote. The home has since been boarded up ...
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
Shoaling and schooling. These powder blue tangs are shoaling. They are swimming somewhat independently, but in such a way that they stay connected, forming a social group. These bluestripe snapper are schooling. They are all swimming in the same direction in a coordinated way. In biology, any group of fish that stay together for social reasons ...
Pit spawning, also referred to as substrate breeding, is a behavior in cichlid fish in which a fish builds a pit in the sand or ground, where a pair court and consequently spawn. [67] Many different factors go into this behavior of pit spawning, including female choice of the male and pit size, as well as the male defense of the pits once they ...
Both for and against. Cats will walk through their litter box after using it then climb directly on your pillow. Dogs shed and drool like there is no tomorrow. But goddamn it the cuddles are so ...
Timeline of fish evolution. The evolution of fishes took place over a timeline which spans the Cambrian to the Cenozoic, including during that time in particular the Devonian, which has been dubbed the "age of fishes" for the many changes during that period. The Late Devonian extinctions played a crucial role in shaping the evolution of fish ...