Only those traits now appear in May.

This is thought to be the most common mechanism of action for natural selection because most traits do not appear to change drastically over time.

The trait appears to be genetic, appearing in Lin's three grandchildren.

Of greater interest, is that such traits do not appear to be limited to Ceratosauria.

This trait appears to have coevolved with bats.

Many traits shared by all living mammals appeared among the earliest members of the group:

Males continue to grow until their secondary sexual traits appear in their fifth to eighth year.

For the rest, Wilms wrote works "in an 18th-century style, although some early Romantic traits appear."

As you may know, there has been much scientific argument about the ways such traits appear.

In short, it is the recognition that the same traits appear in entities of many different sizes, from one man to the entire human population.