Tag: sharks

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Dusky sharks have a gestation period of about 16 months and usually only reproduce once every 3 years. This combined with the time it takes them to sexually mature puts them in greater danger of extinction.

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The kitefin sharks’ teeth are small, narrow, and pointed on the upper jaw, and large, bladelike, and serrated on the lower jaw.

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Modern sharks are divided taxonomically in two superorders: Galeomorphi, containing horn sharks, carpetsharks, mackerel sharks, and ground sharks, and Squalomorphii, containing sawsharks, angel sharks, dogfish sharks, and frilled / cow sharks.

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Whitetip reef sharks, unlike the similar looking silvertips and oceanic whitetips, do not have white tips on their pectoral fins. 

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Port Jackson sharks forage at night when their prey are most active, using caves and rocky outcrops as protection during the day.

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The pyjama shark is endemic to waters off the coast of South Africa, ranging from East London at the south to Saldanha Bay to the west.

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The snaggletooth shark is a rarely seen species of weasel shark characterized by sharp serrated teeth on the upper jaw and hooked teeth on the lower.