Nocturnal animals sleep during the night.

Q. Nocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.

Q. All animals sleep during the night.

Q. Nocturnal animals, the ones which can see during the night, have abundant________.

Q. Animals which are active during night and sleep during the day are called .

Q. Animals like owls and badgers, which are active during the night, are said to be nocturnal. What are animals that are active during twilight called?