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Articles sur Crustaceans

Affichage de 1 à 20 de 45 articles

The majestic St. Lawrence River, a jewel of economic, historical and environmental importance, reminds us of the need to preserve this essential ecosystem. (Ludovic Pascal)

Oxygen in the St. Lawrence Estuary is decreasing – and having a major impact on small animals living there

The waters of the St. Lawrence are running out of breath and bottom-dwelling organisms are already feeling the effects. Here’s how ecosystems are reacting.
Landfast ice ‘breaks out’ Justin Chambers/AAD

Fractured foundations: how Antarctica’s ‘landfast’ ice is dwindling and why that’s bad news

More trouble in Antarctica: the extent of frozen seawater fastened to the coast (called landfast ice) hit a record low in March 2022. If this trend persists, the consequences could be catastrophic.
An ostracod, a small crustacean with more than 70,000 identified species. Anna33/Wikimedia

Blind shrimps, translucent snails: the 11 mysterious new species we found in potential fracking sites

We discovered 11 (and probably more) new species of stygofauna living in water underground. These animals are usually blind, beautifully translucent and long-limbed.
Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a male. Skip Brown/Smithsonian’s National Zoo

Virgin births from parthenogenesis: How females from some species can reproduce without males

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.
The radiodont Anomalocaris, with its large stalked eyes, is considered a top predator that swam in the oceans more than 500 million years ago. Katrina Kenny

Freaky ‘frankenprawns’: ancient deep sea monsters called radiodonts had incredible vision that likely drove an evolutionary arms race

Our study on weird ancient marine animals called radiodonts supports the idea that vision played a crucial role during the Cambrian Explosion, a rapid burst of evolution about 500 million years ago.

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