Male right whales have a higher density of callosities than females and males have been observed scratching one another with their callosities so they may play a role in sexual selection.
Males have been observed scratching one another with their callosities, so they may play a role in sexual selection. Male right whales have a higher density of callosities than females.
Male right whales have a higher density of callosities than females. Males have been observed scratching one another with their callosities, so they may play a role in sexual selection.
Male right whales have a higher density of callosities than females. Males have been observed scratching one another with their callosities, so they may play a role in sexual selection.