The osprey can detect fish from hundreds of metres above.
Why it is true
The osprey (Pandion haliaetus) has extremely sharp vision that allows it to detect fish from hundreds of metres above and dive to catch them. Its eyes have a much higher cone density than humans.
Source: Journal of Experimental Biology
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.