Vágner joins local experts on a mission to catch and tag white sturgeon to aid the species’ survival.
Lurking in the murky depths of the world’s great waterways are bizarre aquatic giants.
In the animal kingdom, there's no shortage of bizarre behaviour. Take a look at some real freaky images of some weird and...
Take a look at some of the weirdest animals in the world.
Get a unique perspective with these up-close photographs of some of the world’s most dangerous creatures.