This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 5 to 20 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
the number of different species in an area
species that influences the survival of many other species
carries the hereditary information that determines traits
the disappearance of all members of a species from Earth
a species in danger of becoming extinct in the near future
a species that could become endangered
the loss of a natural habitat
breaking larger habitats into smaller, isolated pieces
illegal killing or removal of wildlife from their habitats
the mating of animals in zoos or on wildlife preserves