There is a category of behaviour that everybody recognises immediately and nobody can define precisely, which is usually a sign that something interesting is going on.
Play is obvious when…
There is a strong intuition that coordinated group movement requires coordination — something issuing instructions, or at minimum some shared signal that everybody is responding to.
That intuition is wrong,…
There is an assumption embedded in how nervous systems are usually described, and it comes from studying animals built like us.
The assumption is that a nervous system has a…
There is a long-standing assumption in how intelligence gets discussed, and corvids are the clearest available argument against it.
The assumption is that sophisticated cognition requires a particular kind of…
Most complicated biological structures are alive. They are supplied with blood, monitored by nerves, maintained continuously and repaired when damaged.
A feather is none of those things. Once grown, it…
Source: Wikipedia
The arrival of an animal in a household is one of the few truly memorable events of an ordinary childhood, largely because of how long it took to bring…