1. Animals

2. Table of Contents
Mammals
Fish
Amphibians
Reptiles
Insects
Birds

3. Mammals warm-blooded vertebrates covered with hair or fur
most mammals give birth to live young
mammals live on land, at sea, in the air, and under the ground
some examples of mammals are: bats, whales, dolphins, humans, apes, mice, dogs, bears, and many more!

4. Fish live in water and have fins
have gills, which are used to get oxygen from water
are as many as 20,000 species of fish
cold-blooded vertebrates
Fish come in an amazing variety of sizes and colors. Some examples of fish are: eels, sharks (the whale shark is the largest fish), seahorses, clown fish, and many more!

5. Amphibians cold-blooded vertebrates
Amphibians live part of their life on land and part in water. Hundreds of millions of years ago, amphibians became the first vertebrates to live on land.
most lay eggs, but some give birth to live young
more than 5,500 species
some examples of amphibians are: frogs, toads, salamanders, and newts

6. Reptiles Vertebrates Cold-blooded
some lay eggs, others give birth to live young
bodies are covered by scales
spend much of their time on land
there are 6,800 reptile species
some examples of reptiles are: turtles, snakes, alligators, lizards and crocodiles

7. Insects Invertebrates; have an exoskeleton
bodies are made up of three parts (a head, thorax, and abdomen)
Insects have six jointed legs and two antennae
Over one million species of insects have been discovered by scientists, who believe there are many more yet to be discovered.
Insects hatch from eggs and usually go through four separate life stages: egg, larva or nymph, pupa, and adult.
most insects have one or two pairs of wings
some examples of insects are: ants, beetles, butterflies, crickets, bees, and many more
Thorax
Wings
Head
Abdomen
Antennae
Six legs

8. Birds Warm-blooded vertebrates
all birds have feathers, wings and a beak
Not all birds can fly, and not all flying animals are birds. An example of a bird that can not fly is the ostrich.
many birds migrate during the cold winter months
most birds are insectivores; some are carnivores, others omnivores, herbivores or fructivores
there are more than 9,000 species of birds, including: eagles, penguins, peacocks, doves, robins and many more

9. Vertebrates
Vertebrates are animals that have a backbone. The backbone consists of ring-like bones (vertebrae) that protect the soft spinal cord. Vertebrates can be warm-blooded, like humans, or cold-blooded, like fish. Vertebrates include amphibians, fish, reptiles, birds, and mammals.

10. Invertebrates
Invertebrates are animals that do not have a backbone. Invertebrates are cold-blooded; their body temperature depends on the temperature of their environment. Some major groups of invertebrates include: jellyfish, corals, insects, and crustaceans (crabs, lobsters). They often have an exoskeleton, which is a hard outer shell.

11. Cold-blooded
Cold-blooded animals have a body temperature that changes with external conditions. Examples include reptiles, who need to sun themselves in the morning to warm up, and then protect themselves in the midday heat. They may also cool themselves down by resting in a shaded area or in cool water.

12. Warm-blooded
Warm-blooded animals generate heat internally and maintain a relatively constant body temperature (higher than the average temperature of the environment). Examples include mammals (including people) and birds.

13. Exoskeleton
An exoskeleton is a hard outer coat or shell that many invertebrates have to protect their soft insides. The exoskeleton is made up of a material that is very similar to our fingernails.
Cicadidae shedding its exoskeleton

14. Example of life stages of an insect

15. Whales are mammals too!
Whales are large, magnificent, intelligent, aquatic mammals. They breathe air through one or more blowholes into lungs (unlike fish who breathe using gills).
Like all mammals:
Whales breathe air into lungs
Whales have hair (although they have a lot less than land mammals, and have almost none as adults)
Whales are warm-blooded (they maintain a high body temperature)
Whales have mammary glands with which they nourish their young
Whales have a four-chambered heart
The blue whale is the largest animal that has ever existed on Earth. It is larger than any of the dinosaurs were.

16. Animal diets Insectivores = insect-eaters Carnivores = meat-eaters
Omnivores = plant and meat eaters
Herbivores = plant-eaters
Fructivores = fruit-eaters