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A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages.
A common bottlenose dolphin (Tursiops truncatus). A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).
The northern right whale dolphin has an EQ of approximately 5.55; the common bottlenose dolphin of 5.26; [10] the tucuxi dolphin of 4.56; the orca of 2.57; the pygmy sperm whales of 1.78; the narwhals of 1.76; the La Plata dolphin of 1.67; the Ganges river dolphin of 1.55; the sperm whales of 0.58; [11] the dwarf sperm whale of 1.63; the beluga ...
They have exceptionally sophisticated echolocation abilities, detecting the location and characteristics of prey and other objects in the water by emitting clicks and listening for echoes, [45] as do other members of the dolphin family. The mean body temperature of the orca is 36 to 38 °C (97 to 100 °F).
The dermis is derived from the mesoderm and resembles the little connective tissue which are composed of mostly collagen fibers found in bony fish. Some fish species have scales that emerge from the dermis, penetrate the thin layer of the basement membrane that lies between the epidermis and dermis, and becomes externally visible and covers the ...
The bottlenose dolphin sometimes hits a fish with its fluke, sometimes knocking it out of the water, using a strategy called "fish whacking". [38] [126] "Strand feeding" is an inherited feeding technique used by bottlenose dolphins near and around coastal regions of Georgia and South Carolina. When a pod finds a school of fish, they will circle ...
Rescuers who helped free more than a hundred dolphins from the Cape Cod shoreline say they've confirmed that the mass stranding that began June 28 was the largest involving dolphins in U.S. history.
Oceanic dolphins or Delphinidae are a widely distributed family of dolphins that live in the sea.Close to forty extant species are recognised. They include several big species whose common names contain "whale" rather than "dolphin", such as the Globicephalinae (round-headed whales, which include the false killer whale and pilot whale).