Behavioral Adaptations What are they????
What are behavioral adaptation??? • Behavioral adaptations are still “adaptations”, they just differ from physical adaptations because they are behaviors that animals take on to keep them alive. • Physical adaptations are parts of an animal’s body which help them survive- behavioral adaptations are “actions” an animal exhibits. • Both are adaptations which are intended to help keep the animal alive.
Just think…. • What could be the result of an animal NOT having behavioral adaptations?
Instincts…. • What are instincts? • Instincts are BEHAVIORS that an animal is born knowing to do. • Instincts are examples of BEHAVIORAL ADAPTATIONS.
Spiders • Spiders begin life knowing how to spin webs and catch prey- they are not taught by their parents- this is an instinct, which is also a behavioral adaptation. • How are spider webs examples of behavioral adaptations? • How does this adaptation help spiders survive? • How do spiders use this adaptation to capture their prey and feed?
Smart thinking… • Zebras know that living and traveling together in herds protect them from predators…..This is an instinct….which is also a behavioral adaptation. • How does this living arrangement protect the zebras and help tem survive longer?
The Weaverbird.. *How do the Weaverbirds know how to weaver these nests? *Is the Weaverbird’s nest an example of an instinct? Why or why not? Is this an example of a behavioral adaptation?
Hibernation… • What is hibernation? • Hibernation is when animals enter into shelters and enter into an inactive, dormant state. • What does this mean? • The animals are certainly still alive- but their bodies have in a way “shut down” for winter.
Hibernation • Why is hibernation an important behavioral adaptation for animals? • In what areas would animals use hibernation as a behavioral adaptation?
How are animals able to survive hibernation? • Where winters are very cold, by instinct, they know how to get ready for winter. • They begin to eat more food than normal, gaining fat on their bodies. • They then build dens or find shelters (underground) • When the days get shorter and colder, the animal moves into its underground den or shelter and enter a dormant and inactive state • This pretty much means that they sleep for the remaining wintertime.
What???? • The animal’s heart barely beats during hibernation • Breathing almost stops during hibernation • The body temperature of the animal drops to just above freezing. ( our normal body temperature is 98.6 degrees F- freezing is 32 degrees F) • Since the body is barely working, the animal does not use as much energy and the animal does not need to eat. • During the time of the overeating, there is enough stores fat in the animal’s body to keep it alive during winter.
However, in the springtime… • In the springtime, the hibernating animals “wake up” and they are HUNGRY and very thin.
Woodchucks • A woodchucks digs a winter burrow. • Its body temperature drops from 97 degrees F to 46 degrees F!
Bats • A bat’s normal heartbeat is 400 beats per minute. • During hibernation, a bat’s heartbeat drops to 11 beats per minute.
Frogs Many male frogs hibernate t the bottom of ponds while the female and young frogs hibernate in dens on land.
One more behavioral adaptation… • Migration…. • What is migration? • Migration is a behavioral adaptation where a GROUP of animals move to one region and then come back to where they started at. • Why would animals migrate? • To find better climates (such as during the winter) or to places where there is more food.
Migration • Why is migration considered a behavioral adaptation? • Is migration an instinct? • What animals migrate?
Humpback whales • Humpback whales travel over 3,100 miles a season! • They birth their young in warm waters in the winter and then migrate (travel in pods) to cold polar waters in the summer to feed. • They travel nearly 1,000 miles per month.
The Arctic Tern • The Arctic Tern travels farther than ANY other migrating animal. • In the summer, it breeds in the Arctic Circle (right on top of Earth) • In the fall, it migrates to the Antarctic ice packs (on the bottom of earth!) • The Arctic Tern travels almost 18,000 kilometers in its migratory path!
Caribou • Caribou spend the winters in forests in Northern Canada. • In early Spring, they move north.
Sandpiper- long nonstop journey • The Sandpiper spends summers in Eastern Canada, but in winter, it flies NONSTOP over the Atlantic Ocean to South America.