The cat gap is a period in the fossil record of approximately 25 to 18.5 million years ago in which there are few fossils of cats or cat-like species found in North America. The cause of the "cat gap" is disputed, but may have been caused by changes in the climate (global cooling), changes in the habitat and environmental ecosystem, the increasingly hypercarnivorous trend of the cats (especially the nimravids), volcanic activity, evolutionary changes in dental morphology of the Canidae species present in North America, or possibly even attributed to patterns of periodicity of extinctions (climatic/floral cycles called "van der Hammen cycles")
Read more about Cat Gap: Cat Evolution, Hypercarnivorous Tendency As A Probable Cause of The Cat Gap, Changes in Climate and Habitat, Other Possible Causes of The Cat Gap, Evolution of Caniforms During The Cat Gap
Famous quotes containing the words cat and/or gap:
“There was a crooked man, and he went a crooked mile,
He found a crooked sixpence against a crooked stile:
He bought a crooked cat which caught a crooked mouse,
And they all lived together in a little crooked house.”
—Mother Goose (fl. 17th–18th century. There was a crooked man, and he went a crooked mile (l. 1–4)
“Wherever a man separates from the multitude, and goes his own way in this mood, there indeed is a fork in the road, though ordinary travelers may see only a gap in the paling. His solitary path across lots will turn out the higher way of the two.”
—Henry David Thoreau (1817–1862)