taxonomic category that ranks below species, usually fairly permanent geographically isolated race. Smaller subsections of a genus (of plants, animals).

able to move smoothly along surface. (Mud or rock) to fall down a hill.

large flightless seabird of southern hemisphere, with black upper parts and white underparts and wings developed into flippers for swimming under water. Black and white sea birds that cannot fly.

person who is very knowledgeable about or skilful in particular area. Skillful people with special knowledge.

Not of the same kind; unlike other things.

forming or viewed as unit apart or by itself. individual items of clothing suitable for wearing in different combinations. To live away from your husband or wife.

Extremely amusing; very funny.

Study of past events as an academic subject.

To become fixed in place and hard to move.

gladly received. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

Being split in two or more pieces. To separate something into equal pieces.

Smallest in height.

action or process of classifying something.

living organism. Living creatures that are not plants or people.