Frog Skin• Top layer

– Permeable • They can breath through their

skin.• They can drink through their

skin.– Live skin cells – How is this

different from the epidermis layer of human skin?

• Color– camouflaged – warning coloration– Some can even change color!

• Some frogs excrete toxins through their skin.

Elephant Skin• Top layer

– Impermeable– Dead skin cells

• Very thick in order to hold in all that mass– 2.5 cm thick in some places

• No sweat glands– instead they have huge

ears to cool them down– They often bathe in water

to cool down.• Elephants cover their skin

in mud as a sunscreen.