The study also shows that Greenland shark females don’t reach sexual maturity until around 150 years old — suggesting that a century of heavy fishing could wipe out the entire species, says Bushnell. But climate change is a greater threat, says Aaron MacNeil, a marine biologist at the Australian Institute of Marine Science near Townsville, Queensland.
Fascinating that the reproductive timeline can be so long. I'd always thought evolution was heavily biased in favor of rapid reproduction.