It’s sunny by the sofa and our tom cat never fails to find the sun. As the light moves across the room he will follow it. Eyelids drooping as he naps. Head nodding. Whiskers splayed in the sunlight. Plants display phototropism, bending towards sunlight. Is this an example of ‘catatropism’ (or would that be humans moving towards cats?).

In the case of these seedlings I have to turn them round because they bend each day towards the light. True phototropism. But the cat has also moved again.

He’s a true sun seeker.