Bees are first insects shown to understand the concept of zero
Aiming for a bee plus in maths
Bees seem to understand the idea of zero – the first invertebrate shown to do so. When the insects were encouraged to fly towards a platform carrying fewer shapes than another one, they apparently recognised “no shapes” as a smaller value than “some shapes”.
Because of what bees do in their lives - looking for patterns in flowers which give the best reward (nectar) - I’m not sure it’s a big leap, it’s important for them to understand patterns in what they see around them…
Remembering that flowers are seen by bees with a mix of ultraviolet, everything looks different.
It would be interesting to know if the “zero” test was really zero when seen with a mix of UV to simulate “bee vision”: