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Articles on Sharks

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Female elephant seals take seven-month feeding trips during which they balance danger, starvation and exhaustion. Dan Costa

Risk versus reward on the high seas – skinny elephant seals trade safety for sustenance

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.
It’s OK, I’m a filter feeder: Whale shark off Indonesia. Marcel Ekkel/Flickr

Shark Week looms, but don’t panic

Media coverage of sharks often exaggerates risks to people, but more than 500 shark species have never been known to attack humans, and there's lots to learn about them.
A pair of blacktip reef shark neonates (Carcharhinus melanopterus) gently cruise among the roots in the mangrove forest of Surin Archipelago during high tide in Mu Koh Surin national park, Thailand. Shin Arunrugstichai

From sharks in seagrass to manatees in mangroves, we’ve found large marine species in some surprising places

Far more megafauna species use coastal wetlands than we thought. And it affects the way we need to address the extinction crisis.
Of more than 500 species of sharks in the world’s oceans, scientists have only sequenced a handful of genomes – most recently, white sharks. Terry Goss/Wikimedia

Sequencing the white shark genome is cool, but for bigger insights we need libraries of genetic data

Why do scientists spend so much time and money mapping the DNA of species like white sharks? Single studies may offer insights, but the real payoff comes in comparing many species to each other.

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