Sciurus’ partner, Mammalia ... The daughters each have a budding romance, Chordata with the fox squirrel leader, Carolinensis, and Rodentia with an ambitious newcomer gray squirrel, Sciuridae.

Batrachotomus kupferzellensis was the top predator of its ecosystem and belonged to the most dangerous group of animals of its time, the so-called pseudosuchians, which were crocodile ancestors.

This was abundantly clear last week when I was in Florida, watching a specific variation of the Eastern fox squirrel (Sciurus niger). I’d found the Sherman’s fox squirrel (Sciurus niger shermani) that ...

Squirrel in garden. Photo by Steve Smith on Unsplash Squirrels, common across the U.S., are often spotted in backyards. The gray squirrel (Sciurus carolinensis) is the most prevalent, recognized by ...

如何识别花园里的松鼠 花园里的松鼠。照片由 Steve Smith 在 Unsplash 上拍摄 松鼠在美国各地很常见，经常在后院发现。灰松鼠（Sciurus carolinensis）是最常见的一种，以其浓密的尾巴和灰色或白色的腹部而闻名，它在美国东部繁衍生息，以水果、坚果和鲜花为食。

For example, the world's smartest dog breed is more intelligent than a four-year-old child. Plus, there's another animal that is smarter than a five-year-old child, and it's not an ape, dolphin, or ...

这种渐变群在东美灰松鼠（Sciurus carolinensis）种群中表现得十分明显。当前，黑色变种（melanic morph）在城市中更为常见，然而在城市化之前，它在乡村林地中更为普遍。研究人员在沿城市化梯度分布的一系列主要栖息地中，对比了灰松鼠的两种主要毛色变种 ...