Darwin words

mesquite pod used in tanning and dyeing

extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds

any plant of the family Asclepiadaceae

self-fertilization in plants

South American caracara

extinct lungfish

very small bipedal carnivorous dinosaur of the late Jurassic in Bavaria

mutually related

cause to undergo cross-fertilization

occurring or existing in two different forms

one species

having few if any teeth

the branch of biology that studies the formation and early development of living organisms

protrusion of the eyeball from the socket

a forked bone formed by the fusion of the clavicles of most birds

abnormal condition in which vision for distant objects is better than for near objects

breed animals or plants using parents of different races and varieties

loosestrife

consisting of only one type

rock, sway, or nod; usually involuntarily

fast-growing herbaceous evergreen tree of South America having a broad trunk with high water content and dark green oval leaves

Argentine armadillo with six movable bands and hairy underparts

evolutionary development of a species or group of organisms

belonging to the present time

bred for many generations from member of a recognized breed or strain

a distinct and often subordinate group within a group

a bony fish of the subclass Teleostei

ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center