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Warmer conditions seem to speed up the sharks' growing process, and that means they hatch earlier and are born exhausted.

Warming oceans mean smaller baby sharks struggle to survive PATRICK WHITTLE, Associated Press FacebookTwitterEmail 5 1of5In this February 2019 photo provided by the New England Aquarium, scientist Carolyn Wheeler holds a baby epaulette shark in Quincy, Mass. Scientists have found the baby sharks are less likely to survive to maturity in warming ocean waters. (New England Aquarium/Emily Moothart via AP)Emily Moothart/APShow MoreShow Less 2of5In this February 2019 photo provided by the New England Aquarium, scientist Carolyn Wheeler holds a baby epaulette shark, in Quincy, Mass. Sc...

February 1, 2021 Oceanic sharks and rays have declined by at least 71% since 1970, mainly because of overfishing, according to a study published last week in Nature. The study is the first global assessment of its kind, and authors suggest the collapse in shark populations could be even more extreme because of incomplete data and the already increasing fishing pressure prior to 1970. “The findings of this paper are horrifying but ultimately not that surprising,” Oceana Marine Scientist and shark expert Mariah Pfleger told The Guardian. “We have long known that many species of sharks a...

Global shark and ray population crashed more than 70% in past 50 years – study Oliver Milman © Provided by The Guardian Photograph: Jorge Silva/Reuters The global population of sharks and rays has crashed by more than 70% in the past 50 years, researchers have determined for the first time, with massive ongoing losses pushing many species towards extinction. A huge increase in fishing since 1970 has ravaged the abundance of sharks and rays in our oceans, with previously widespread species such as hammerhead sharks now facing the threat of being wiped out, the study found....