Laboratory mating trials indicate incipient speciation by sexual selection among populations of the cichlid fish Pseudotropheus zebra from Lake Malawi.
Can cuticular lipids provide sufficient information for within-colony nepotism in wasps?
Francesca R Dani, Kevin R Foster, Francesca Zacchi, Perttu Seppä, Alessandro Massolo, Annalisa Carelli, Elisabeth Arévalo, David C Queller, Joan E Strassmann, and Stefano Turillazzi