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Protosphyraena: A Late Cretaceous "Swordfish" at the Oceans of Kansas website. Includes detailed taxonomic history, life restorations, bibliography, many photos of fossil remains. The most complete skeleton of Protosphyraena pernicosa yet found, on display at the Rocky Mountain Dinosaur Resource Center.
The popular image of the swordfish skewering its prey with its nose is based on little evidence. In a typical environment, swordfish most likely use their noses to slash at prey and inflict weakening injuries. [6] The hypothesis that they may use their noses as spears in a defensive capacity against sharks and other predators is still under review.
Chondrichthyes (/ k ɒ n ˈ d r ɪ k θ i iː z /; from Ancient Greek χόνδρος (khóndros) ' cartilage ' and ἰχθύς (ikhthús) ' fish ') is a class of jawed fish that contains the cartilaginous fish or chondrichthyans, which all have skeletons primarily composed of cartilage.
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 schooling fish. They swim through the fish school at high speed, slashing left and right, and ...
The dramatic images capture crews unloading pieces of the doomed sub off the Horizon Arctic ship onto dry land at the Canadian Coast Guard pier in St John’s, Newfoundland, on Wednesday – more ...
"Society of the Snow" is earning raves for its a ccurate depiction of the terrifying 1972 plane crash in the Andes mountains that involved a Uruguayan rugby team.. The new Netflix drama, directed ...
Researchers compared how three antioxidants affected gray hair outcomes in mice: hesperetin, diosmetin, and luteolin, and found that one helped mitigate hair graying.