Animals on the EDGE

Secretary bird

Stop the extinction of the world’s most Evolutionary Distinct and Globally Endangered (EDGE) species and their habitats.

Using a scientific framework to identify the world’s most Evolutionarily Distinct and Globally Endangered (EDGE) species, the EDGE of Existence programme highlights and protects some of the weirdest and most wonderful species on the planet.  EDGE species have few close relatives on the tree of life and are often extremely unusual in the way they look, live and behave, as well as in their genetic make-up.  They represent a unique and irreplaceable part of the world’s natural heritage, yet an alarming proportion are currently sliding silently towards extinction unnoticed.

Read more on the EDGE website


EDGE Birds

New study reveals half of the 100 highest ranked EDGE bird species are receiving little or no conservation attention. The EDGE top 100 birds list identifies the most Evolutionarily Distinct and Globally Endangered avian species in the world. We must conserve these species to safeguard the greatest amount of evolutionary history possible.

Visit the EDGE Birds Top 100 website to find out more.

Black Rhinoceros

ZSL is working with Social Finance, the United Nations Development Programme...

Asian elephant in Salakpra Wildlife Sanctuary

ZSL is working in and around Salakpra Wildlife Sanctuary to conserve iconic...

Chinese Giant Salamander

ZSL’s EDGE of Existence Programme has been working to protect this unique...

85% of the top 100 EDGE amphibians are currently receiving little or no conserva
Greater adjutant

The ‘little dodo’ and a bird that dispatches its prey by stamping on its...

EDGE coral reefs highlights 10 priority species for conservation that reflect th
Edge Fellow Description

The EDGE of Existence programme invests in conservation at a grass-roots...

Elephants, rhinos and pandas are well-known EDGE mammals, but 70% of the highest
The Ganges River Dolphin

The Ganges river dolphin is in need of protection, so ZSL is studying their...

Long-eared jerboa

Surveying the diverse and unique wildlife of this region and building up a...

Pygmy Hippo caught in camera trap

The pygmy hippopotamus, or pygmy hippo, Choeropsis liberiensis, is an...

Pygmy sloth climbing

The unique and critically endangered pygmy sloth is the world’s slowest...

Temminck’s ground pangolin. Picture: Scott and Judy Hurd

Pangolins, or scaly anteaters, are the world’s only scaly mammals