Science summary

                                                Sexual reproduction

Sexual reproduction is how many creatures reproduce. Mammals like us are one example. Many creatures will inherit some of their parents traits. Others will not. Some creatures like the grebe (a bird) do a dance before mating. this dance shows that it is a grebe,not another bird.


Gametes are sex cells . The sperm fertilizes the egg  and the egg turns into a baby. Some creatures lay eggs outside of their bodies while other eggs stay inside of a body. Mammals have eggs inside of their bodies that the sperm comes to. The egg will stay still and the sperm will move to it.


The gametes are eggs and sperms. They are what make babies. These babies could develop inside the body of a mammal or outside of another creature. Fish reproduce by laying many eggs and spraying the sperm on them. Not all the eggs will get hit by the sperm.