The Vaquita, a critically endangered porpoise
With an estimated population of no more than 19, the world’s smallest marine mammal, the Vaquita, is listed by the IUCN as Critically Endangered. The Vaquita was discovered in the 1950s and first described in 1958 in “Journal of Mammalogy” – that’s very recent, because the species has been around for over 2.5 million years. …