Pelicans can swallow all the fish they catch in their huge bills - but it helps if they drain out excess water first. Read more about the pelican here.
The beak can fit inside the egg - because, when the tiny chick hatches out, the beak is just a tiny bump on the chick's head. Read more about the hummingbird.
Listen to Jochen Weiss of the University of Hohenheim speak about using nanotechnology to add omega-3 fatty acids to a variety of foods. Read more about fortifying foods.
Global food supply tops the agenda of many scientists. A piece of prehistoric wisdom of ancient farming combined with modern science could be a big help.
There's no practical limit on how far away we can see - if we're looking at objects brighter than their backgrounds. Read more about how far can a human see.