They may have been around for hundreds of millions of years—long before trees—but today sharks and rays are are among the most threatened animals in the world, largely because of overfishing and habitat loss.
Climate change adds another overarching stressor to the mix. So how will sharks cope as the ocean heats up?
Our new research looked at Port Jackson sharks to find out. We found individual sharks adapt in different ways, depending where they came from.
Port Jackson sharks from cooler waters in the Great Australian Bight found it harder to cope with rising temperatures than those living in the warmer water from Jervis Bay in New South Wales.
This is important because it goes against the general assumption that species