tanange=tangent
The periglacial areas were the best for grazing.
The wall of the glacier shielded the area from the bitter north wind, the dazzling vertical wall acts as a solar concentrator providing more heat and light for plant growth, the glacial till provides a rich, well conditioned soil, while moraines trap ponds of melt water.
Up near the face of the glacier is the best grazing for a thousand miles!
Until a big chunk breaks off and pounds you into the muck before you even have a chance to swallow that mouthful of marigolds...
He’s a blogger, young by the sound of him, and actually helps us out — NOTHING of this kind — widespread, sudden extinction — has happened in modern times, despite claims that “whole taxa” will vanish because of chainsaws, Aquanet, cattle farts, etc etc. We will survive this, they will not.
Fortunately for the tanager, the author was a lightweight so it wasn't too heavily laden.