Pedra da Gavea mountain seen from The Tijuca Forest,  a mountainous hand-planted rainforest in the city of Rio de Janeiro, Brazil. The Tijuca Forest is home to hundreds of species of plants and wildlife, many threatened by extinction. Getty Images
Pedra da Gavea mountain seen from The Tijuca Forest,  a mountainous hand-planted rainforest in the city of Rio de Janeiro, Brazil. The Tijuca Forest is home to hundreds of species of plants and wildliShow more

Global survey finds 'frightening' rate of plant extinctions