This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 7 to 19 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
the gradual development of something, especially from a more simple to a more complex form
A concept theorized by Charles Darwin; adjustments of genes throughout generations based on factors that help it survive
a primate of a family that includes human and their fossil ancestors and also at least some of the great apes
having more offsprings than resources available
a primate of a taxonomic tribe, which compromises those species regarded as humans, directly ancestral to humans or closely related
transfer of alleles from one population to another
shows relation between extinct and current organisms
an organ or a bone that appears in different animals, demonstrating descent from a common ancestor
the preying of one animal on others
ability to survive not reproduce