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HeredityAdaptations in traits found in Birds
Drawing Lab
Science 7
Mr. Nigh
Darwin’s Finches adaptations Darwin's finches are an excellent example of the way in which species' gene pools
adapt for long term survival. Their beaks have evolved over time to be best suited to an important function—Food Acquisition
Adaptation: a characteristic of a species that allows members of that
species to survive in a particular environment
Beak Adaptations
Pouch likePouch like — can hold the fish it catches to eat
Pelican
Avocet
Long thinLong thin – can probe shallow water and mud for the insects it eats.
Pointed Pointed – can break and probe bark of trees for the insects it eats
Woodpecker
Warbler Finch
Short, Stout Short, Stout – Can crack the seeds and nuts it eats
Hummingbird
Slender, long Slender, long – Can probe the flowers for nectar
Feet
Webbed Webbed – Aids in walking on slick rocks and swimming
Duck
Crane Heron
Long toes Long toes – Aids in walking in mud– Aids in walking in mud
Bald Eagle
Clawed Clawed – Can grasp food when hunting prey
Chicken
Grasping Grasping – Aid in sitting on ledges, roosting, and good protection
Legs
Ostrich
Long, Powerful Long, Powerful – Aids running ability
Great Blue Heron
Long, SlenderLong, Slender – Aids wading ability
Bald Eagle
Powerful Muscles Powerful Muscles – Aids lifting, carrying prey
Flexor tendons Flexor tendons – Aids in perching, grasping
Chickens
Wings
Peregrine Falcon
Large Wingspan – Aids soaring ability while hunting
Small, fast wings Small, fast wings -- Ability to hover near food source for maneuverability and quick getaway
Hummingbird
Objectives in Lab
• You will recognize that there are advantages for birds in looking the way that they do.
• You will recognize some of the ways in which birds are physically adapted to their environments
• Follow instructions given on lab sheet to construct a new species of bird perfectly adapted with characteristics from its evolutionary gene pool to not just survive, but thrive!!