SCIENCE5 Q2 5 identify which groups of animals reproduce by giving birth to live young, such as mammals.pptx

identify which groups of animals reproduce by giving birth to live young, such as mammal

1. Animal Reproduction: Live Birth vs. Egg Laying

2. Welcome to Animal Reproduction! Today we'll learn about how different animals have babies We'll explore two main ways: live birth and egg laying Can you think of any animals that have live babies? How about eggs?

3. What is Live Birth? Live birth means babies are born alive from their mother's body The baby develops inside the mother until it's ready to be born This process is called viviparity Can you imagine being a baby animal inside your mother?

4. Animals That Give Live Birth Mammals are the main group that have live births Examples include humans, dogs, cats, and whales Some reptiles and fish can also have live babies What's your favorite mammal?

5. Mammals and Live Birth Almost all mammals give birth to live young Babies develop in the mother's womb They are fed through an umbilical cord Can you name three mammals you've seen in real life?

6. Exceptions to the Rule Not all mammals give live birth! Platypus and echidna lay eggs These are called monotremes Why do you think these mammals are different?

7. What is Egg Laying? Egg laying means babies develop inside eggs outside the mother's body This process is called oviparity Eggs have a hard or leathery shell to protect the baby Have you ever seen an animal egg?

8. Animals That Lay Eggs Birds, most reptiles, amphibians, and fish lay eggs Insects and other invertebrates also lay eggs Some sharks lay eggs too! Can you think of an animal that lays eggs in water?

9. Birds and Egg Laying All birds lay eggs They build nests to keep their eggs safe Parents take turns sitting on the eggs to keep them warm What's the most interesting bird's nest you've seen?

10. Reptiles and Egg Laying Most reptiles lay eggs This includes snakes, lizards, turtles, and crocodiles They often bury their eggs in warm sand or soil Why do you think reptiles bury their eggs?

11. Amphibians and Egg Laying Frogs, toads, and salamanders lay eggs Many lay their eggs in water The eggs are often in clumps or long strings Have you ever seen frog eggs in a pond?

12. Fish and Egg Laying Most fish lay eggs in water Some make nests, while others scatter eggs Male seahorses are special - they carry the eggs! How do you think fish eggs are different from bird eggs?

13. Insects and Egg Laying Insects lay lots of tiny eggs Butterfly eggs are often on leaves Ant queens can lay thousands of eggs! Can you think of a place you've seen insect eggs?

14. Egg Care Many animals take care of their eggs They might sit on them, guard them, or hide them Some animals leave their eggs alone What are some ways animals might protect their eggs?

15. Live Birth vs. Egg Laying: Pros and Cons Live birth: babies are more developed but it takes more energy Egg laying: can have more babies but they're more vulnerable Both ways work well for different animals Which way do you think is better? Why?

16. Unusual Reproduction Methods Some animals have unique ways of having babies Seahorse dads give birth Some lizards can have babies without a dad What's the strangest animal birth fact you know?

17. Why Different Methods? Animals reproduce in ways that help them survive It depends on their environment and lifestyle Evolution has shaped these methods over time How might an animal's home affect how it has babies?

18. Caring for Young After birth or hatching, parents often care for their young They might feed, protect, or teach their babies Some animals don't care for their young at all What are some ways human parents care for their babies?

19. Human Reproduction Humans are mammals and give live birth A human baby grows in the mother for about 9 months Humans usually have one baby at a time How are human babies similar to other mammal babies?

20. Protecting Animal Babies Many animal species need our help to survive We can protect habitats where animals have their babies Zoos help endangered animals reproduce What can you do to help protect animal babies?

21. Review: Live Birth vs. Egg Laying We learned about two main ways animals have babies Live birth: mainly mammals Egg laying: birds, reptiles, amphibians, fish, and insects What was the most surprising thing you learned today?

22. Introduction: Reviewing What We Know We've learned about live birth and egg laying Now let's explore some other fascinating aspects of animal reproduction Can you remember an interesting fact from our last lesson?

23. The World of Animal Babies Animal babies come in all shapes and sizes Some can care for themselves right away, others need lots of help What's the cutest animal baby you can think of?

24. Gestation: Growing Time Gestation is how long a baby animal grows inside its mother It can be as short as 12 days for a hamster Or as long as 22 months for an elephant! How long do you think human babies grow before they're born?

25. Litter Size: How Many Babies? Some animals have one baby at a time Others have many babies in a litter Rabbits can have up to 14 babies in one litter! Why do you think some animals have more babies than others?

26. Baby Names Baby animals often have special names A baby cat is a kitten, a baby dog is a puppy A baby kangaroo is called a joey Can you think of any other special names for baby animals?

27. Animal Parenting Styles Some animal parents are very protective Others leave their babies to fend for themselves Emperor penguin dads hold their egg on their feet for months! What's the most impressive animal parenting fact you know?

28. Metamorphosis: Changing Babies Some animals go through big changes as they grow This is called metamorphosis Caterpillars turn into butterflies Can you name another animal that goes through metamorphosis?

29. Frog Life Cycle Frogs start as eggs in water They hatch into tadpoles with tails Slowly, they grow legs and lose their tail Finally, they become adult frogs Have you ever seen a tadpole in real life?

30. Marsupials: Pouches for Babies Marsupials are mammals with pouches Their babies are born very tiny and underdeveloped The babies climb into the pouch to finish growing Kangaroos and koalas are marsupials. Can you name another?

31. Sea Turtle Hatchlings Sea turtles lay eggs in nests on beaches When the babies hatch, they race to the ocean Many predators try to eat them on their journey Why do you think this journey is so dangerous for baby turtles?

32. Salmon: A Long Journey Home Salmon are born in freshwater rivers They swim to the ocean to grow up As adults, they return to the exact same river to have their own babies How do you think salmon remember where they were born?

33. Octopus Moms: The Ultimate Sacrifice Octopus moms lay up to 100,000 eggs! They guard the eggs for months without eating After the babies hatch, the mom dies Why do you think octopus moms make this sacrifice?

34. Honey Bee Reproduction A honey bee colony has one queen bee The queen lays all the eggs for the hive She can lay up to 2,000 eggs in one day! How is this different from how mammals have babies?

35. Clownfish: Changing Gender Clownfish live in groups with one female and several males If the female leaves, the largest male becomes female This ensures the group always has a mom and dad What do you think about animals that can change gender?

36. Parasitic Reproduction Some animals lay their eggs inside other animals The babies eat the host animal as they grow Wasps sometimes lay eggs inside caterpillars How would you feel if you were the caterpillar?

37. Hermaphrodites: Two-in-One Some animals have both male and female parts They're called hermaphrodites Earthworms and snails are examples What might be an advantage of being a hermaphrodite?

38. Asexual Reproduction Some animals can reproduce all by themselves This is called asexual reproduction Starfish can grow a whole new body from just one arm! Can you think of any other animals that might reproduce this way?

39. Endangered Species and Reproduction Some animals are in danger of extinction Scientists work hard to help these animals reproduce Pandas are an example of an endangered species Why do you think it's important to help endangered animals have babies?

40. Conclusion: The Wonder of Animal Babies We've explored many amazing ways animals have babies From tiny insects to huge whales, every animal has a unique story What was the most surprising thing you learned about animal reproduction?

41. Question 1 What is it called when animals give birth to live young? a) Oviparity b) Viviparity c) Metamorphosis d) Gestation What mammal can you think of that gives live birth?

42. Question 2 Which mammal lays eggs instead of giving live birth? a) Kangaroo b) Whale c) Platypus d) Elephant Why do you think the platypus is different from other mammals?

43. Question 3 What group of animals always lays eggs? a) Mammals b) Birds c) Fish d) Reptiles What's your favorite kind of bird? Do you know where it builds its nest?

44. Question 4 Where do most amphibians lay their eggs? a) In trees b) In water c) In the ground d) In nests Have you ever seen frog eggs in a pond? What did they look like?

45. Question 5 Which animal is unique because the male carries and gives birth to the babies? a) Penguin b) Seahorse c) Kangaroo d) Octopus How do you think a seahorse dad feels carrying all those babies?

46. Question 6 Which animal has the longest gestation period (time a baby grows inside its mother)? a) Human b) Elephant c) Whale d) Giraffe Why do you think elephant babies need so long to grow before they're born?

47. Question 7 What is the process called when an animal changes form as it grows up? a) Metamorphosis b) Viviparity c) Oviparity d) Gestation Can you describe the stages a butterfly goes through as it grows?

48. Question 8 What are animals with pouches called? a) Mammals b) Reptiles c) Marsupials d) Amphibians Why do you think having a pouch is helpful for these animals?

49. Question 9 What do baby sea turtles do right after they hatch? a) Look for their parents b) Start swimming c) Eat their first meal d) Race to the ocean What dangers do you think baby sea turtles face on their way to the ocean?

50. Question 10 Why do scientists work hard to help pandas reproduce? a) Pandas are very cute b) Pandas are endangered c) Pandas live in zoos d) Pandas eat a lot of bamboo What other endangered animals can you think of? Why is it important to protect them?

51. Answer Key 1. b) Viviparity 2. c) Platypus 3. b) Birds 4. b) In water 5. b) Seahorse 6. b) Elephant 7. a) Metamorphosis 8. c) Marsupials 9. d) Race to the ocean 10. b) Pandas are endangered