What are the relationships between tigers and lions members of the genus felis?

Tigers and lions belong to the genus Panthera, not Felis. Panthera is distinct from Felis, which includes smaller cats like domestic cats and servals. Both tigers and lions are large, social felids that share a common ancestor but have evolved different traits and behaviors suited to their environments. While they exhibit similar predatory behaviors, their social structures differ, with lions being more social and living in prides, whereas tigers are typically solitary.