This printable crossword puzzle on the topic of Ecology & Evolution has 10 clues. Answers range from 5 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
an extinct genus of large carnivorous bone-crushing mammals, popularly known as bear dogs
is a star, as viewed from a given latitude on Earth, that never sets below the horizon due to its apparent proximity to one of the celestial poles
a South American fox species
a subfamily of extinct canids.
a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present.
a layer of tissue in the back of your eye that senses light and sends images to your brain.
moist, naked surface around the nostrils of the nose in most mammals
the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different.
a unique and elusive canid species endemic to the Amazonian basin.
the geological epoch which lasted from about 2,588,000 to 11,700 years ago