The Gulf Coast has seen big jumps in baby bull shark numbers. As adults, these are among the most aggressive species of sharks, but the babies aren’t cause for concern, as three scientists explain.
In winter 2023-24, the Great Lakes’ ice cover was near record lows, peaking at just 16%. Researchers explain how diminishing ice could have consequences for fisheries, and how species are evolving.
New research finds nearly 30% of land animals could disappear form their local area by 2100 due to climate change and habitat destruction. This is more than double previous predictions.
Polar bears and wolves may get the glory, but small predators like weasels, foxes and their cousins play outsized ecological roles. And many of these species are declining fast.
Emma Kast, University of Cambridge; Jeremy McCormack, Goethe University Frankfurt am Main, and Sora Kim, University of California, Merced
Megalodon, the world’s largest known shark species, swam the oceans long before humans existed. Its teeth are all that’s left, and they tell a story of an apex predator that vanished.
Lee Smee, Texas A&M University-Corpus Christi and Joseph W. Reustle, University of North Carolina at Chapel Hill
Hurricane Harvey destroyed the fishing infrastructure of Aransas Bay and reduced fishing by 80% over the following year. This removed humans from the trophic cascade and whole food webs changed.
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.
Rewilding is gaining popularity around the world, as a means to restore ecosystems to their ancient state. But just like Vegemite, Australian rewilding projects need to have a unique flavour.
An AC/DC-loving biologist tests the band’s 1980 assertion that “rock ‘n’ roll ain’t noise pollution.” Turns out it can be – and the negative effects of noise can ripple through an ecosystem.