Half the Earth
How much of the Earth is actually protected
About a sixth of the land and a twelfth of the sea, by the latest global count. What the figures include, why they move, and how far they are from thirty.
Witness3 min read
The reading around the record, delivered.
The email edition is being set up. Until then, the feed carries every note the day it ships.
Species
One animal, one verifiable thing about it.
Species
The crane that had to be taught where to go
Whooping cranes learn their migration route by flying it with older birds. What that means for a species rebuilt from captivity, and what it puts at risk.
Witness3 min read
Species
The Iberian lynx and the arithmetic of coming back
The 2025 census counted 2,663 Iberian lynx and then said the number is a floor, not an estimate. Why success makes a population harder to count.
Witness3 min read
Species
How many vaquita are left
The most recent survey saw between seven and ten, and at least one calf. What that number counts, and why published figures disagree.
Witness3 min read
Numbers
What a count, a category, or a percentage actually measures.
Half the Earth
Protected areas, corridors, rewilding, and the argument for leaving half the planet to everything else.
Attention
Apps, media, and what noticing is worth.
The Archive
Thirty species records, each with sources, rights, and an honest review state. The app's own catalog.
