The Vaquita (Phocoena sinus) is this weeks Weird Wildlife Wednesday species. This is the smallest member of the cetaceans, toping out at around 4.9 feet long and is also the most critically endangered with populations potentially fewer than two-hundred individuals. Unlike some other more well known cetacean species, these guys tend to be more solitary, typically in groups no larger than four individuals. Little is known about the life history of these animals because of their low numbers and illusiveness. This is also the reason why there are so few pictures of them alive.
One of this biggest threats currently for this little cetacean is entanglement in fishing gear. Being endemic to and only found in the Gulf of California, Mexico, it is thought that pesticides flowing from the Colorado River may be posing a threat to Vaquitas as well.