Animal Senses Roundup
Even flies can get sick from eating spoiled food.
Prosthetic limbs are moving ever closer to life-like, thought-controlled replicas.
A group of microscopic animals get 10% of their active genes by eating the DNA of other species.
An Australian bird thwarts nest invaders by requiring its young to sing a secret call to get fed.
A meltdown of Arctic ice may have triggered the last deep freeze in the Northern Hemisphere.