Life

Jellyfish keep eyes on the sky, plus hot mosquitoes, the key to royal jelly and more in this week’s news

Eyes on the skies
Even though box jellyfish don’t rank very high on visual tasks, they may be able to navigate underwater by picking up cues from above the water. One of the four types of the 24 eyes of Tripedalia cystophora is positioned on a stalk that keeps the simple, image-forming organs looking up regardless of which way the jelly is swimming.