Day 1两个概念。
amphibian:an animal such as a forg that can live both on land and in water
Some animals can overwinter without the hibernation. But some animals need hibernate in winter.
Hibernate means some animals sleep during winter. for example:bear tortoise squirrels hedgehogs snakes groundhog..
Bears prey on salmon in water.they must eat a lot of food before they hibernate in their caves .
Squirrel has enough nuts in store for its winter hibernation.
第二个游戏Animal dominoes
