Directions 3/22/18 Sit down and circle your predictions about the 10 True or False questions concerning dogs. Wait patiently to start “Dogs by Design” video Fill out Doodle notes while viewing the video *Turn in paper when you are dismissed…finished or not! Doodle notes are GRADED!!!

PBS Video Part 1: Dogs that Changed the World (Summary) Biologist Raymond Coppinger believes that garbage dumps played a key role in the story of the domestication of dogs. According to his theory, when human settlements developed, some wolves began to feed on food people threw away. During the 1950s, geneticist Dmitri Belyaev selectively bred foxes for tameness and discovered that after just a few generations, the descendants of the tamest foxes began to look and behave almost like dogs. Geneticist Peter Savolainen uses DNA evidence to propose a theory that all dogs originated in a single area in East Asia thousands of years ago — then migrated with humans around the world. In the Arctic, Inuit hunters depend on the speed and endurance of sled dogs that navigate the landscape, transport heavy loads, and sense weakness in the ice as they’re traveling.

https://youtu.be/6X1rOeu-lBM

Which two horses are you going to breed? (1 female+1 male) Mind Stretcher 3-23-18 Which two horses are you going to breed? (1 female+1 male)

CHECK IT: True or False? (discuss with table) Dogs are descended mostly from wolves, jackals, and coyotes. 2. The dog was the first animal to be domesticated by humans. 3. The dog was first domesticated in the early 1500s. 4. There are about 40 species in the dog family, Canidae. 5. About 80 breeds of domesticated dogs exist today. FALSE TRUE FALSE TRUE FALSE

6. An adult dog and wolf of the same weight will have different-sized heads. 7. Dogs and wolves bark for some of the same reasons. 8. Dogs and wolves rely equally on visual communication. 9. Wolf hybrids must be licensed and vaccinated for rabies. 10. You can’t teach an old dog new tricks. Source: www.pbs.org/wgbh/nova/wolves/wolfdog.html TRUE TRUE FALSE TRUE FALSE

Next Steps: Answer the 3 questions next to your T/F… Now turn it back in for Doodle Notes grade! https://youtu.be/kWUA7CLmJ9Y https://youtu.be/fHS-OY9XDZc Mini-Lesson Selective Breeding (try these on your own using pencil!)