Articles sur Fish

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Euphanerops, a primitive jawless fish from the World Heritage site at Miguasha, Quebec, which has now been found to have paired hind limb structures and copulatory sex organs. François Miville-Deschênes with permission

The origins of those sexual organs: a fishy tale much more primitive than we thought

Sexual organs similar to what we see in sharks and rays today appeared many millions of years ago in much more primitive ancient fishes than was previously thought.
A whale shark moves towards a piece of plastic in the ocean. (Shutterstock)

Not all marine fish eat plastics

If we are truly invested in addressing the issue of marine plastic and offsetting the potential harms, we have to understand which fish eat plastic and which ones don't.
Exposure to omega-3 fatty acids during a child’s early years may play a role in reducing breast cancer risk later in life. (Shutterstock)

How fish may reduce your child’s breast cancer risk

New research suggests omega-3s from seafood to be more effective at reducing breast cancer risk than those from plant-based sources.
Boat noise can interfere with the underwater communication of fishes and other marine animals. Unsplash

The fishy problem of underwater noise pollution

The noise from motor boats, sonar and other industrial activity interferes with the underwater chatter of fishes.
The Amazon rainforest is fed by a rich network of creeks, streams and rivers. Informal road construction is now endangering this critical ecosystem. Rickey Rogers/Reuters

Amazonian dirt roads are choking Brazil’s tropical streams

Thousands of dirt roads crisscross the Brazilian Amazon, serving ranchers, loggers and miners. The area's fragile waterways — and the spectacular fish that live in them — pay a high price.
A large female Greenland shark observed near the community of Arctic Bay, Nunavut. (Brynn Devine)

Caught on camera: Ancient Greenland sharks

Using baited cameras scientists have captured some of the first underwater video footage of the elusive Greenland shark.

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