capable of fertilization only at 10 years of age, and
the whale shark becomes sexually mature at the age of 30-40 years. Sharks are characterized by internal fertilization: some species lay their eggs, others are egg-born, the rest are viviparous. The incubation period depends on the species and lasts from several months to 2 years. The laying of oviparous fish contains from 2 to 12 eggs. After fertilization, shark eggs are covered with a protein shell, which is also in turn covered with a horn-like shell. This allows you to protect them from various marine predators. The hatched cub immediately begins to live and eat on its own.
In sharks living in captivity, cases of parthenogenesis - fertilization without the participation of males, were recorded.
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