“You might find a better metaphor in fishes we call euryhaline, which can pass between fresh and saltwater regularly,” he says. “Most fishes can’t do it, but those that can are physiologically quite ...

Sharks are typically associated with the vastness and mystery of the open ocean. However, an intriguing phenomenon has been capturing the attention of marine biologists and nature enthusiasts alike: ...

This study was conducted following the Guidelines of the European Union Council (2010/63/UE) and Portuguese legislation “The protection of Animals Used for Scientific Purposes” (DL 113/2013). All the ...

If you are as much of an animal lover as we are, you might be interested in the 10 most endagered animals around the globe and how you can protect them. A species is classified as endangered when its ...

One of the smallest whale species, a male beluga whale can weigh up to 3,000 pounds and grow up to 16 feet long. ©Luna Vandoorne/Shutterstock.com These social animals can live in both salt and ...