Pink Velvet Worm

Invertebrates > Onychophora

The Pink Velvet Worm (Opisthopatus roseus) is an exceedingly rare and ancient terrestrial invertebrate belonging to the phylum Onychophora—an evolutionary lineage dating back over 500 million years to the Cambrian explosion. Endemic strictly to a tiny handful of...

Sumatran Ground Cuckoo

Birds > Cuculiformes

The Sumatran Ground Cuckoo (Carpococcyx viridis) is one of the most enigmatic, reclusive, and critically endangered avian species in Southeast Asia. Endemic strictly to the precipitous, densely forested Barisan Mountains of southwestern Sumatra, this massive,...

Greater Monkey-faced Bat

Mammals > Chiroptera

The Greater Monkey-faced Bat (Pteralopex flanneryi) is a colossal, critically imperiled pteropodid fruit bat endemic exclusively to the remote oceanic islands of the Solomon archipelago. First scientifically distinguished in 2005 and named after Australian mammalogist...

Bartlett’s Rata

Plants > Myrtales

Bartlett’s Rata (Metrosideros bartlettii) is one of the rarest trees on Earth and among the most critically endangered botanical treasures of New Zealand. Discovered in 1975 by botanist John Bartlett in a remote gully at the northernmost tip of the North Island,...

Guifarro’s Palm Pit Viper

Reptiles > Squamata

Guifarro’s Palm Pit Viper (Bothriechis guifarroi) is an exceptionally rare, venomous arboreal serpent discovered in 2012 in the rugged cloud forests of northern Honduras. Named in honor of Mario Guifarro, an environmental activist murdered while defending...