| At the mid-latitudes, the winds are called the westerlies, and at the highest latitudes, the winds are called the polar easterlies. |
| Here in the temperate northern latitudes trees have adapted over eons of regular annual seasons. |
| It is only at the highest latitudes that temperature will set additional physiologic limits. |
| High southern latitudes were not invaded by angiosperms until the end of the Cretaceous. |
| Broad environmental conditions, particularly average temperatures, differ less among populations in equatorial regions than at higher latitudes. |
| This contrasts with temperate and especially sub-tropical and tropical latitudes where keratose sponges can be common. |
