mammals ,by aitor, diego and mart

MAMMALSMAMMALS

Aitor, Diego and Mart Aitor, Diego and Mart 11stst A (ESO) A (ESO)

IES COMARCALIES COMARCAL

Introduction about vertebrates Mammals: body parts Mammals’ functions: Respiration, Nutrition,

Reproduction and Interaction Habitat Groups Curiosities References

SummarySummary

Introduction about vertebrates

They have an endoskeleton with a backbone..

They have a head, a trunk and, many of them, a tail.They have a head, a trunk and, many of them, a tail.

They have a well-developed nervious system, articulated limbs and They have a well-developed nervious system, articulated limbs and

bilateral symmetry.bilateral symmetry.

Head Spinal columnHead Spinal column

TrunkTrunk

Articulated limbs Tail Articulated limbs Tail

TailTail

Mammals: body partsMammals: body parts The neck joins the head and the trunk.

Their bodies are covered with hair or fur which keeps them warm.

They have teeth and mammary glands that produce milk.

Mammals’ functionsMammals’ functions

Respiration They use lungs to breathe

Nutrition

They feed on different

things:

carnivorous,

herbivorous and

omnivorous

Mammals’ functionsMammals’ functions

ReproductionMammals are viviparous. They feed on their mother’s milk

InteractionMammals are homeothermal or warm-blooded

HabitatHabitat

Most mammals are terrestrial. Others, like dolphins, are

aquatic.

GroupsGroups

There are three different groups:

Monotremes Marsupials

Placentals

1. The heart of a whale has the same weight as a small

car.

2. Rhinoceros’ horns are made up of fur.

3. The smallest mammal over the world is the

hog-nosed bat from Thailand.

4. Elephants can’t jump.

5. There are 701 races of dogs .

Curiosities: Curiosities: Did you know Did you know that…?that…?

6. Jiraffes can clean their ears with their tongue.

7. Dolphins sleep with one eye open .

8. A koala sleeps 22 hours every day.

9. Rats reproduce themselves very fast : in 18 months

rats can have more than 1 million of descendents.

10. Camels have three eyelids to protect them from

sand flying around them.

Curiosities: Curiosities: Did you know Did you know that…?that…?

- “Essential Natural Science”. First ESO. Ed.

Santillana

- http://listas.20minutos.es/lista/1oo-curiosidades-del-re

ino-animal

- http://www.taringa.net/posts/imagenes

- https://sites.google.com/site/

adoptaexoticovalencia/no-apto-paraadultos/

curiosidades-del-reino-animal

ReferencesReferences

Thanks for Thanks for

your attention!your attention!