Zombie Caterpillars

Zombie Caterpillars are now added to the list of zombie insects and life.

How do these bugs, moulds, parasites, animals know how to control another completely different life form?

zombie life forms

Caterpillars are being killed by a bug which turns them into "'xploding zombies' ... The baculovirus drives caterpillars on a 'death march' to the top of plants, then when it dies the bug bursts out to seek other victims. The trust's Dr Chris Miller said it was 'gruesome - like a zombie horror film'.

the baculovirus affects the way the 'zombie' insects respond to light, making them climb to higher and more dangerous places and when they get there they die.
Caterpillars turned into 'exploding zombies' by bug | BBC