Key Factors Contributing to the Survival of Terrestrial Animals

Characteristics that apply to most Hexapoda (six-legged arthropods) are in italics. Characteristics that may apply to most dinosaurs are in bold. Individual groups would have to be classified independently (exceptions exist). The more positive characteristics a group possesses, the less likely it will become extinct. r = r-strate-gists; K = K-strategists.

Factors Positive characteristics Negative characteristics

Lineage

Polyphyletic

Monophyletic

Reproductive adaptations

0 0

Post a comment