He is chill but maybe he can't smell: > Modern cetaceans lack a large number of OR genes, and odontocetes lost the nervous system structures that mediate olfaction, such as the olfactory tract, olfactory bulb (OB) and cranial nerve I https://t.co/F6fU9
“These findings suggest that profound changes in the chemosensory capabilities occurred in the cetacean lineage before the Odontoceti-Mysticeti split, during the period when ancestral whales migrated from land to water." https://t.co/BPxzvyCDrc
Olfactory receptors. “Modern cetaceans lack a large number of OR genes, and odontocetes lost the nervous system structures that mediate olfaction, such as the olfactory tract, olfactory bulb (OB) and cranial nerve I." https://t.co/BPxzvyCDrc
“In addition, all modern whales have lost the functional sweet, umami and bitter taste receptors before the Odontoceti-Mysticeti split." https://t.co/BPxzvyCDrc