Term
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Definition
| earliest known bird, lived 150 mya |
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Term
| Birds' closest extant relatives |
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Definition
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Term
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Definition
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Term
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Definition
| short and rounded, slotted, allows for tight maneuvering but slow flight, for forest dwellers |
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Term
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Definition
| flat, no slots, for aerial foragers and long migrations |
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Term
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Definition
| : long and narrow, no slots, strong winds necessary for gliding |
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Term
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Definition
| slotted, gliding, slow speed and less maneuverability |
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Term
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Definition
| large, stiff, act as airfoil (tail feathers and flight feathers) |
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Term
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Definition
| entirely plumulaceous but have longer rachis than down feathers, hidden beneath contour feathers, provide insulation and fill out contour of body |
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Term
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Definition
| fine, hair-like with short barbs at the tip, usually not exposed and act as sensory structures providing info about the contour feathers |
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Term
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Definition
| stiff, barbules only at bottom of feather or not at all, present around beaks and eyes, screens out particles and act as tactile sense organs |
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Term
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Definition
| - entirely plumulaceous, provide insulation |
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Term
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Definition
| feet & soles on ground (humans, bears etc) |
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Term
cursorial
digitigrade
unguligrade |
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Definition
running
running on toes
on tips of toes (horses, artiodactyla) |
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Term
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Definition
| like bunnies or kangaroos |
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Term
swimming
amphibious
aquatic
marine |
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Definition
using feet for locomotion
front & hind limbs modified (seals)
like dolphins |
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Term
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Definition
| lives underground, locomotes accordingly |
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Term
arboreal
sloth movement
scansorial
branchiating |
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Definition
inverted
jumpers & climbers
swinging |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| simple stomach, long digestive tract |
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Term
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Definition
| like cows, look at the picture |
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Term
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Definition
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Definition
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Term
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Definition
| facilitates respiration and excretion |
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