Three allopatric species of cat native to Israel are also highly sexually dimorphic, resulting in six unique morphotypes. Each of these has teeth whose size distributions overlap very little where species co-occur, but are much more variable where no other species occur. The most plausible hypothesis to explain this pattern is: a. community wide character displacement has acted to reduce competition for limiting prey.
b. the cats are incorrectly identified and must belong to the weasel family, Mustelidae.
c. teeth are phylogenetically conservative and subject to environmental filtering.
d. teeth are used as a signaling device within species to identify potential mates.
e. the cats are involved in an evolutionary arms race towards larger teeth.