Tuesday, November 20, 2012

PRIMATES


Humans belong to this group of mammals.
Gorillas, chimpanzees and monkeys are also primates.
All primates have big brains and their eyes are at the front of their face.
They use their hands to grip objects and use them as tools.

FLYING MAMMALS


There are many different types of bats.
Bats fly using their upper limbs, which are wings.
The wings have layers of skin stretched over the arms and fingers.
Bats have a thumb and four fingers.
Bats hunt insects at night but they cannot see them.
They use their big ears to help them find the insects.

Monday, November 19, 2012

MARINE MAMMALS


Marine mammals, like dolphins or whales, live in the sea.
They have bare skin ant they swim using their fins.

Marine mammals are excellent divers. 
However, they need to come to the surface of the water to breathe in oxygen from the air.


Photos from Wikipedia

HOW MAMMALS REPRODUCE


Mammals are viviparous.
They are born from their mother's womb and drink their mother's milk.
Some babies, like lambs, can walk when they are born.



Others cannot. Baby kangaroos stay in the mother's pouch for some time.



CHARACTERISTICS OF MAMMALS


Mammals are vertebrates.
Most mammals live on land and use their legs to move around.
They breathe through lungs.
Their skin is usually covered with fur or hair.

Information from: Kid's Corner

Photo from: ZMEScience

Monday, November 12, 2012

ASEXUAL REPRODUCTION IN PLANTS


Many plants also reproduce asexually, without flowers or seeds.
Olive trees can grow from cuttings.
The cuttings are branches that are cut off and planted.
They grow roots and produce a new plant.


REPRODUCTION IN PLANTS


Most plants have sexual reproduction.
The flowers have a male part and a female part.

  • In spring, the plum tree grows flowers.
  • The carpel (pistil) of the flower turns into a plum.
  • The plum grows. The seeds are inside the plum.

  • The seeds fall to the ground and germinate. They grow small roots and a stem.
  • A new plum tree grows.