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Reproduction In Animals
This document summarizes reproduction in different types of animals. It explains that mammals like humans and bears give birth to live young that they nourish and care for. Birds lay eggs that parents incubate until the chicks hatch. Frogs lay many eggs that become tadpoles and later frogs. Insects undergo complete metamorphosis from egg to larvae to pupa to adult. Butterflies pass through the stages of egg, caterpillar, pupa and adult. Fish, snakes and turtles lay eggs outside their bodies that hatch into young.
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Introduction to animal reproduction and its significance for sustaining life.
Mammals, such as humans and bears, give birth to live young, providing care and milk until they are self-sufficient.
Birds lay eggs, and mothers incubate them and care for the chicks until they become independent.
Frogs lay eggs in water; tadpoles hatch and undergo metamorphosis into adult frogs.
Insects reproduce by laying eggs and may undergo multiple transformations; example of cockroaches.
Butterflies have a four-stage lifecycle, developing from eggs to larvae (caterpillars) to adults.
Various animals like fishes, snakes, turtles, and crocodiles lay eggs, with protective behaviors observed.
Personal note reflecting the author's experience aiding with school projects and sharing information.
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Reproduction In Animals
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- 2. Reproduction Reproduction In Animals All livingthings grow, become old and then die. All living things produce young ones like themselves so that life on earth can continue.
- 3. Animals that give birthto babies Reproduction In Animals Animals such as humans, lions, tigers, cows and bears give birth to babies.
- 4. Animals that give birthto babies Reproduction In Animals The babies are formed inside the body of the mother where they stay for several weeks before being born.
- 5. Reproduction in Mammals Reproduction In Animals Whenthe babies are born, they are weak and helpless.
- 6. Reproduction in Mammals Reproduction In Animals Theirmothers care for them and protect them till they learn to look after themselves.
- 7. Reproduction in Mammals Reproduction In Animals Themothers feed their babies with their own milk. Such animals are called mammals.
- 8. Animals that layeggs Reproduction In Animals Birds make nests to lay eggs. The female bird lays the eggs.
- 9. Egg Reproduction In Animals In thecentre, is a yellow portion called the yolk. It contains the developing baby called the embryo. It also contains food for the embryo. Surrounding the yolk is a white portion called the albumen. It protects the embryo and provides water to it.
- 10. Reproduction in Birds Reproduction In Animals Afterthe eggs are laid, one of the parent birds, usually the mother sits on them to keep them warm. The baby birds start growing inside the eggs.
- 11. Reproduction in Birds Reproduction In Animals Aftera few weeks, when the baby birds are fully developed, they break open the shell and come out.
- 12. Reproduction in Birds Reproduction In Animals Theparent birds feed and protect the young birds until they can look after themselves.
- 13. Reproduction in Birds Reproduction In Animals Theparent birds feed and protect the young birds until they can look after themselves.
- 14. Reproduction in Frogs Reproduction In Animals Afemale frog lays hundreds of eggs at a time in a lake or a pond. Tadpoles hatch out of these eggs. They swim in the water and look like fishes.
- 15. Life Cycle ofFrog Reproduction In Animals After a few weeks the tadpoles start to grow legs. Their tails become shorter and shorter and finally disappear. After some time, they change into adult frogs.
- 16. Reproduction in Insects Reproduction In Animals Allinsects lay eggs. Many of them go through several stages before changing into adults.
- 17. Reproduction in Insects Reproduction In Animals Cockroachespass through three stages in their life cycle. The baby cockroach that hatches out from an egg looks like the adult except that it does not have wings. It is called a nymph. It sheds its skin several times and changes into an adult. Shedding of old skin is called moulting.
- 18. Reproduction in Insects Reproduction In Animals Grasshoppers,locusts and termites also go through these three stages.
- 19. Life Cycle of Butterfly Reproduction InAnimals Butterflies and moths go through four stages in their life cycle before becoming adults. The female butterfly lays eggs in clusters on the underside of a leaf. The eggs hatch into young ones called larvae. They look like worms.
- 20. Life Cycle of Butterfly Reproduction InAnimals The larva of a butterfly is called a caterpillar. The caterpillar eats leaves and grows quickly. It then forms a shell called a cocoon around its body. This stage is called pupa. Inside the pupa, the caterpillar slowly changes its shape. An adult butterfly finally comes out of the pupa.
- 21. Other egg laying animals Reproduction InAnimals Fishes lay eggs in water. They lay thousands of eggs at one time. Baby fishes hatch out of the eggs. But many of the eggs and baby fishes are eaten by other fishes.
- 22. Other egg laying animals Reproduction InAnimals Snakes and turtles lay eggs on the ground.
- 23. Other egg laying animals Reproduction InAnimals Turtles dig shallow pits in sandy coasts to lay their eggs. The mother covers the eggs with sand.
- 24. Other egg laying animals Reproduction InAnimals Crocodiles dig shallow pits in sandy river banks to lay their eggs. The mother covers the eggs with sand and guards them. When the babies hatch, the mother digs them out.
- 25. This presentation isa result of my experiences while I was helping out my son with his school assignments and project work. I am happy to share this with other students and their parents. Hope you find this informative and useful. Thank you. - Prashant Mahajan - All pictures belong to their original authors, photographers.