The endangered San Francisco garter snake is a rare species only found in the Bay Area. Image: Amy Patten
Nature in the city - life short science news

A US study, in which citizens could report urban plants and animals, shows that nature in the city strongly depends on the region where the city is situated.

However, while the number cosmopolitan species (pigeons, white-tailed deer, dandelions) that are found in most of cities is relatively small, the actual number of individuals of these species outnumbered that of the number of individuals of local species.

Thus, while one would observe mostly cosmopolitan urban plants and animals, cities still harbor many local, and even rare species, but in lower numbers.

Read the full story: California Academy of Sciences
Scientific publication: PeerJ