What does it mean to be a “semi-aquatic” dinosaur? Was it wading in the shallows, or could it have been a skilled swimmer?

Invasive species cost the North American economy $26 billion a year. By outcompeting local plants or animals, invaders reduce ...

Invasive species cost the North American economy $26 billion a year. By outcompeting local plants or animals, invaders reduce biodiversity and can make entire regions less ...