CHICAGO­ —Webbed underarms can turn a sluggish robotic octopus into a speed demon. A squishy membrane connecting the machine’s eight arms helps the bot scoot through water nearly twice as fast as ...

Webbed feet enable these animals to swim, walk, and climb more efficiently. For example, webbed feet help quickly propel an animal through water to evade predators, or aid in hunting food, giving ...

But, like roughly one in every 2500 people - including this author, and celebrities like Conan O’Brien, Ashton Kutcher and Dan Aykroyd - some of Mailata’s lower digits are fused together with extra ...