Fig. 1
From: Live bearing promotes the evolution of sociality in reptiles

Inter-generational social grouping occurs in a diverse range of squamate reptiles. For example, social grouping occurs in the viper, Crotalus horridus a, the scincid, Liopholis whitii b, the agamid, Phrynocephalus vlangalii c and the xantusid, Xantusia vigilis d. Photos: J. Williams a, G. While b, Y. Qi c, A. Davis Rabosky d