But over time, the climate become cooler, and around 460 million years ago, the ocean temperatures became comparable to those of present day equatorial waters.

Yockerbow's lifetime had elapsed without a sight of the Fleet; it was working the broadest equatorial waters.

I nodded, thinking what it must be like sailing these heavy beamy boats loaded with dried fish in equatorial waters.

The warm equatorial waters form a barrier that isolates the northern and southern species from one anther.

The warm equatorial waters form a barrier that prevents mixing between the northern and southern groups.

The nature and severity of the resulting disturbances is directly related to how warm the equatorial water gets.

The slush extracted heat from bodies accustomed to equatorial waters.

Spawning occurs year-round in equatorial waters, but it gets more and more seasonal further away from the equator.

It appears periodically, alternating with what has only recently been identified as its opposite twin: an abnormally cold stretch of equatorial water.

This is a part of equatorial waters known for light squalls followed by calms.