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The size of a fully matured female bull shark to produce viable eggs for fertilization seems to be 175 cm to 235 cm. The courting routine between bull sharks has not been observed in detail as of yet. The male likely bites the female on the tail until she can turn upside down and the male can copulate at that point.
[7] [8] Hatchlings are considered large for sharks, reaching over 14 cm in length by the time they leave the egg case. [8] Bullhead shark eggs typically hatch after 7 to 12 months, depending on the species. [8] The female Japanese bullhead shark has been known to deposit their eggs in one location along with other females, called a "nest". [8]
The egg case of the crested bullhead shark has distinctive, long tendrils at one end. Crested bullhead sharks are oviparous with a possibly annual reproductive cycle. Females produce 10–16 eggs per year during late winter in July and August, though Michael (1993) noted that egg-laying may continue year-round. [1]
[8] [5] Hatchlings are considered large for sharks, reaching over 14 cm in length by the time they leave the egg case. [5] Bullhead shark eggs typically hatch after 7 to 12 months, depending on the species. [5] The female Japanese bullhead shark has been known to deposit their eggs in one location along with other females, called a "nest". [5]
Generally sharks have only one layer of tesserae, but the jaws of large specimens, such as the bull shark, tiger shark, and the great white shark, have two to three layers or more, depending on body size. The jaws of a large great white shark may have up to five layers. [29]
The shark hatched from an egg on Jan. 3, 2025. Aquarium staff are unsure how the egg came to be, as female and male sharks at the aquarium have not been in the same habitat for more than three years.
The Linnaean shark is known to be a bottom dwelling shark which is similar to the Bullhead shark family. [3] The zebra bullhead shark is of minimal interest to commercial fisheries and game fishing. [3] However, due to the unique and attractive color pattern of these sharks they are a part of the aquarium trade around the world. [3]
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