Fish diversity documented in Switzerland's rivers

In a major survey of Swiss rivers and streams, more than 50 different fish species were recorded. For the first time, more than one species was also found in the case of smaller types of fish such as the bullhead. In Progetto ...

Stressed-out tadpoles grow larger tails to escape predators

When people or animals are thrust into threatening situations such as combat or attack by a predator, stress hormones are released to help prepare the organism to defend itself or to rapidly escape from danger—the so-called ...

Extinct fossils reveal their genetic pattern

Researchers have provided a glimpse at genetic expression in long-extinct fossil dinosaurs. This new insight comes from the discovery of a correlation between the genetic patterning observed in today's chickens and crocodiles, ...

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