Caterpillars + Bacteria = Interesting Relationship

Caterpillars use bacteria to produce green islands in yellowing leaves.

Wolbachia bacteria are a fascinating species, among other things, it put its entire genome into a fruit fly, gives its hosts a variety of superpowers from making them capable of asexual reproduction, causes sex changes in male butterflies, or even killing off the males of the species. So is this relationship straight parasitism (as many would argue), mutualism, or commensalism? It probably depends upon whom you ask!

Antifreeze

Because someone in 1st period JUST asked about this:

REMARKABLE CREATURES

When Built-In Antifreeze Beats a Winter Coat

By SEAN B. CARROLL

Published: January 19, 2010

Many insects, and other animals, defend themselves against direct exposure to subfreezing temperatures through biochemical ingenuity.

Bees!

Watch this. (fascinating video about how honeybees attack hornet predators)

Then read this. (more to the story, it's not just the heat!)

And as a side note, I was recalled to IHS!