Mammals
This can be found covering a lot or a little of a mammals body
hair
Birds reproduce by laying these
eggs
Amphibians can live in these two places
on land and in water
Reptiles have this type of covering protecting their bodies
scales
These cover the outside of a fish
scales
Mammals have these that are needed to breathe air
lungs
These coverings are unique to birds only
feathers
The name of a baby frog
Tadpole
Humans use their projected ears to hear, but reptiles only have these
ear holes
Fish use them to breath under water
gills
Mammals nurse their young with this liquid
milk
This type of bird has the world's largest egg
the ostrich
Amphibians can breathe using these two structures
lungs and gills
Some reptiles like turtles and lizards move using four legs. A snake has neither of these. I get around by doing this.
slithering
The name of a group of fish
School
Mammals don't lay eggs. This is how they reproduce
give birth to live young
These structures are hollow and lightweight, allowing easy flight for birds
bones
Amphibians are like fish in terms of their reproductive system by doing this
producing many eggs
Reptiles don't need moisturizer! This special covering actually helps them hold in moisture and lets them live in dry places.
dry skin
Fish are the first animals to evolve these structures distinct to vertebrates
backbones
I breather air. I give birth to live young. I am warm blooded. I have no fur.
a dolphin or whale
The majority of Birds do not have these, but mammals have them to assist in eating
teeth
Mammals are hairy, reptiles scaly but amphibians have this type of skin
smooth skin
The temperature of reptile's blood changes with the temperature where they live.
Cold-blooded
While some fish like tuna and swordfish are warm-blooded, the majority of fish are this
cold-blooded