For the many wondrous things humans can do, we can't fly on our own. But if we could, how big would our wings be? Of course, the answer depends on the person's size. But someone who's about 155 pounds ...

Health officials are making a renewed call for vigilance against bird flu, but some experts are puzzling over why reports of new human cases have stopped appearing. Has the search for cases been ...

Bird flu has ripped through the animal kingdom for the past few years now, killing countless birds and crossing into an alarming number of mammals. Yet people remain largely untouched. Even though the ...

Humans don't have hollow bones like birds do, so how big would our wings have to be to lift us off the ground? When you purchase through links on our site, we may earn an affiliate commission. Here’s ...