Sharks have been around for more than 400 million years — but not all sharks are equally resilient to changes around them. Why do some groups thrive, while others dwindle?
As part of the nation’s massive wartime mobilization effort, millions of Americans, for the first time, traveled abroad – where many had their first encounters with the marine predators.
From working on Jaws to putting herself in danger, Valerie Taylor vowed to change public attitudes to sharks. A new film dives deeply into her underwater life.
Alison Kock, South African Institute for Aquatic Biodiversity
Sharks grow slowly and produce few young compared to bony fishes. In many cases, this means that their populations are fished out faster than can be replenished if not well managed.
By measuring how and when elephant seals sleep, researchers were able to figure out how elephant seals change their risk-taking behavior as they gain weight.
Mercedes Burns, University of Maryland, Baltimore County
Parthenogenesis, a form of reproduction in which an egg develops into an embryo without being fertilized by sperm, might be more common than you realized.
Researchers are using a newly developed satellite tag to study previously unknown aspects of tiger shark reproduction. This approach could be used on other difficult-to-study shark species.
Marine Biologist, South African National Parks (SANParks); Honorary Research Associate, South African Institute for Aquatic Biodiversity (SAIAB), South African Institute for Aquatic Biodiversity