4 ms·
Answer: We don't know yet.
by tartuffe78 8y ago
Answer: We don't know yet.
- glandium 8y agoDo we really not know, though? "Birds can see Earth's magnetic fields because of cryptochromes in their eyes" https://news.ycombinator.com/item?id=16823201 https://news.ycombinator.com/item?id=16823201
- AstralStorm 8y agoIt's a putative mechanism not a fully explored one.