[NativeSon]

I wonder if the beetles are using a shadow cast by the light to postion - keep the angle, keep the direction? I don’t know how it could be anything else, it would require much more “processing power”.

[skinkinthegrass]

I wonder if the beetles are using a shadow cast by the
light to position - keep the angle, keep the direction?very likely...Ants in the Sahara Desert, do the same...