Extension(s):
Plant: tobacco -- one giant leaf covering all the others (which whiter), full with pustules
Fish: pangasius -- overgrown liver filled with toxic waste which pushes the skin creating a bulge
Reptile: snake -- extended tongue, long enough to reach the tail also split in 4 and not in 2
Insect: locusts -- overgrown teeth -enough to be seen with the naked eye
Mammal: whales -- extended blow holes - resembling tubes
Plant:carrot -- tiny discolored leaves
Fish: Gold fish -- overgrown eyes (so you'll feel bad when you look at it in the bowl you have placed it)
Repltile: snake -- eyes the size of golf balls
Insect: ant -- 20 cm legs
Mammal: mole -- huge nose that can make it get stuck in the tight places