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The swordfish (Xiphias gladius), also known as the broadbill [5] in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill. They are a popular sport fish of the billfish category. Swordfish are elongated, round-bodied, and lose all teeth and scales by adulthood.
The body is often fusiform, a streamlined body plan often found in fast-moving fish. Some species may be filiform ( eel -shaped) or vermiform ( worm -shaped). Fish are often either compressed ( laterally thin and tall) or depressed ( dorso-ventrally flattened).
The rostrum of the Chinese paddlefish was narrow and sword-like whereas the rostrum of the American paddlefish is broad and paddle-like. Some common morphological characteristics of paddlefish include a spindle-shaped, smooth-skinned scaleless body, heterocercal tail, and small poorly developed eyes.
These come in a variety of shapes, and can appear: rounded or pointed (e.g. round goby) truncated, ending in a more-or-less vertical edge (e.g. trout) emarginate, ending with a slight inward curve (e.g. Eurasian carp) forked, ending in two prongs (e.g. catla) lunate or shaped like a crescent moon (e.g. swordfish)
Fish are normally cold-blooded, with body temperatures the same as the surrounding water. However, some oceanic predatory fish, such as swordfish and some shark and tuna species, can warm parts of their body when they hunt for prey in deep and cold water. The highly visual swordfish uses a heating system involving its muscles which raises the ...
Billfish have a long, bony, spear-shaped bill, sometimes called a snout, beak or rostrum. The swordfish has the longest bill, about one-third its body length. Like a true sword, it is smooth, flat, pointed and sharp. The bills of other billfish are shorter and rounder, more like spears. [40] Billfish normally use their bills to slash at ...
The weight of being a Hollywood star can take a toll on a person’s weight.In an industry obsessed with physical appearance, a few extra pounds on the hip or a suddenly pronounced jawline ...
The hallucinogenic dream fish, Sarpa salpa, a species of bream recognizable by the golden stripes running the length of its body, can induce LSD-like hallucinations if it is eaten. These widely distributed coastal fish [ 141 ] became a recreational drug during the Roman Empire , and are called "the fish that make dreams" in Arabic .