527 528 7 th Grade Agenda Learning Objective

5/27 & 5/28 - 7 th Grade Agenda üLearning Objective: Learn about Mammals & Family Life üCollect HW: Homework: Reading & Notetaking p. 239 – 242 üVideo: New born Kangaroo üFamily Life Lesson #2 üTextbook Reading 490 -517 üHW: Reading & Notetaking p. 243 – 246 üReminder: Chap 12 Test on 5/29 & 5/30 üReminder: Last day to turn in late work is 6/4

Reflection • Prompt: Write 3 Questions that you have about mammals.

Characteristics of Mammals • endothermic vertebrates • four-chambered heart • skin covered with fur or hair. • Most mammals are born alive • young mammal is fed with milk

Do Dolphins have hair? • Yes. Near their blow holes • Most of the hair disappear when they get older

What are the function of hair and fur? • Fur and hair prevent body heat from escaping • Helps maintain a stable body temperature in cold weather • Animals in cold regions have thicker coats of fur

When did the first mammals appear? • About 270 Million years ago • They were small mouse like animals • After the dinosaurs disappeared about 65 million years ago, larger mammals evolved

You can tell the type of food mammals eat by its skull & teeth. • What type of food does this animal eat?

You can tell the type of food mammals eat by its skull & teeth. • What type of food does this animal eat?

Do some mammals lay eggs? • Yes. • Monotremes lay eggs: • Two types of Monotremes are: Spiny Anteaters & Duck billed platypus

What are Marsupials? • Marsupials are mammals • The young are born alive • But at an early stage of development, they develop in a pouch on their mother’s body

Baby Kangaroo in mother’s pouch

What are Placental Mammals? • Placental mammal develops inside its mother’s body

Diversity of mammals • Most of the mammal species are bats and rodents

Reflection • Prompt: Write 5 facts that you learned in the video