The amphibians and the water snake.

THE AMPHIBIANS

• Amphibians are cold-blooded animals that possess backbones and display features that lie between those of fish and reptiles.
• Amphibians evolved from fish about 400 million years ago, when the amount of dry land on Earth increased greatly.
•  They have moist, scaleless skin that absorbs water and oxygen, but that also makes them vulnerable to dehydration (loss of bodily fluids).
• The life cycle of most amphibians begins in water when the female lays eggs that are fertilized outside of her body.
• Amphibians usually reach full adulthood at three to four years. 

THESE ARE POISONOUS FROGS:

THE WATER SNAKE

• They are active during the day and at night. They are most often seen basking on rocks, stumps, or brush. During the day, they hunt among plants at the water's edge, looking for small fish, frogs,worms, leeches, crayfish, salamanders, small birds and mammals. 
• The northern water snake can grow up to 135 cm. 
• They can be brown, gray, reddish, or brownish-black.
• They are ovoviviparous (live-bearers), which means they do not lay eggs like many other snakes.

THIS IS THE WATER SNAKE: