What they suspect is happening is that left-handed snails avoid the attentions of right-handed crabs because these dexterous crustaceans find it tricky to eat lefties.
What they suspect is happening is that left-handed snails avoid the attentions of right-handed crabs because these dexterous crustaceans find it tricky to eat lefties.
他们猜想当时的情况可能是左撇子的蜗牛不会引起右撇子螃蟹的兴趣，因为这些惯用右爪的螃蟹发现要吃这些会向左转的家伙比较难。