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Mahi-mahi have compressed bodies and one very long dorsal fin extending from the head almost to the tail fin. Mature males have distinctive "foreheads"; it grows as the fish matures and often protrudes well above the body proper, which is streamlined by the musculature of the back. This "hump" is a sexually dimorphic feature; females have a ...
Mandarinfish lack scales and have a layer of smelly and bitter slime which blocks out disease and probably discourages predators, implying their bright coloration is aposematic. [63] Anglerfish have loose, thin skin often covered with fine forked dermal prickles or tubercles, but they do not have regular scales. They rely on camouflage to avoid ...
However, the condition in which the dolphins lives, most likely in an aquarium tank, will impact how much energy is required for a captive dolphin to thrive in captivity. Studies have also shown that the highest amount of food intake that a captive Pacific white-sided dolphin displays in autumn when the dolphin increase their food intake as ...
Atlantic white-sided dolphins jump and breach more frequently when in larger groups, as this behaviour might have a social context. [16] They have a wide vocal repertoire which includes squeals, whistles, clicks and buzzes. [17] [20] It is suggested that vocalisation is used for communication as noise production increases during socialising. [20]
The common dolphin (Delphinus delphis) is the most abundant cetacean in the world, with a global population of about six million. [3] Despite this fact and its vernacular name, the common dolphin is not thought of as the archetypal dolphin, with that distinction belonging to the bottlenose dolphin due to its popular appearances in aquaria and the media.
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).
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The precise nature of its purported scales has not been studied in detail, but they appear to be structurally different from pangolin scales. Anomalures also have scales on their tail undersides. [8] Foot pad epidermal tissues in most mammal species have been compared to the scales of other vertebrates.