Nowadays, children are watching other children playing with toys on Youtube, and these are the most lucrative Youtube channels.
We explain the dangers of having young children (<3yo) watching screens, particularly for their language development. To learn, they need real-world interactions and screens are mostly lost time for learning. Illustration by Fiamma Luzzati!
It's here but in French.

A study has showed that an insect (mantis) has developped stereoscopic vision. When such different lines of evolution converge on the same solution for depth perception, it is another kind of evidence for the importance of stereo vision.