While a mechanism hasn't been shown yet, crickets were made to fear wolf spiders transgenerationally: http://www.jstor.org/pss/10.1086/650443 http://www.jstor.

While a mechanism hasn't been shown yet, crickets were made to fear wolf spiders transgenerationally: http://www.jstor.org/pss/10.1086/650443 http://www.jstor.org/pss/10.1086/650443] After studying the issue, I'd be willing to bet a friend a lot of money that natural selection alone will be proven insufficient to fully explain evolution.