RE: Reproductive cycles
November 1, 2014 at 2:14 pm
(This post was last modified: November 1, 2014 at 2:26 pm by Anomalocaris.)
That only holds when you are comparing relatively closely related animals who also happen to be similar in size. When you compare more distantly related animals of similar size, say between a grizzly bear (~220 days) and a horse (~350 days), the similarity in gestation period disappears.
When you compare relatively closely related animals of substantially different sizes, you see similar gestation periods. Black bears (200 lbs, 220 days) and grizzly bear (500 lbs, 215 days), for example.
clearly the evolutionary lineage of an animal is a more important factor in determining length gestation period.
When you compare relatively closely related animals of substantially different sizes, you see similar gestation periods. Black bears (200 lbs, 220 days) and grizzly bear (500 lbs, 215 days), for example.
clearly the evolutionary lineage of an animal is a more important factor in determining length gestation period.
