Figure 2
From: Aquatic adaptation and the evolution of smell and taste in whales
Phylogenetic relationships, divergence times and the numbers of intact chemosensory receptor genes of cow (Artiodactyla), Antarctic minke whale (Mysticeti) and bottlenose dolphin (Odontoceti). Notes: a. taken from Niimura and Nei [25]; b. taken from Shi and Zhang [52]; c. taken from Jiang et al. [7].