A giant panda named Kai Kai looks on as he opens a gift to celebrate his upcoming 14th birthday at the River Safari wildlife park in Singapore on September 10, 2021. (Photo by Roslan Rahman/AFP Photo)

A member of the Pakistani Anti-Narcotic Force (ANF) takes a selfie beside a pile of burning drugs and liquor during a ceremony at the Kacha Ghari army firing range, on the outskirts of Peshawar on October 16, 2018, after the contraband was seized in raids across the province. (Photo by Abdul Majeed/AFP Photo)

Global wildlife populations will decline by 67% by 2020 unless urgent action is taken to reduce human impact on species and ecosystems, warns the biennial Living Planet Index report from WWF (World Wide Fund for Nature) and ZSL (Zoological Society of London). From elephants to eels, here are some of the wildlife populations most affected by human activity. Here: The maned wolf is among the large mammals in the Brazilian Cerrado that are threatened by the increasing conversion of grasslands into farmland for grazing and growing crops. (Photo by Ben Cranke/Nature Picture Library/Alamy Stock Photo)

Fishermen are seen near thousands of fish found dead at Lake Maninjau due to lack of oxygen levels at the bottom of the lake and bad weather that hit the area in Agam, West Sumatra Province, Indonesia on April 29, 2021. (Photo by Muhammad Arif Pribadi/Antara Foto via Reuters)

A Hindu woman hold clay-lamp during a ceremony to celebrate Diwali, the festival of lights, at Krishna temple in Lahore, Pakistan, Sunday, November 12, 2023. The Hindu festival of lights, Diwali celebrates the spiritual victory of light over darkness. (Photo by K.M. Chaudary/AP Photo)

In this December 29, 2004 file photo, Kusol Wetchakul offers prayers for the soul of his sister, at dawn along the beach near Khao Lak, Thailand. Wetchakul's sister was swept out to sea and believed drowned as she sold goods to tourists on the popular tourist beach just north of Phuket. Friday marks the 10th anniversary of one of the deadliest natural disasters in world history: a tsunami, triggered by a massive earthquake off the Indonesian coast, leaving more than 230,000 people dead in 14 countries and causing about $10 billion in damage. (Photo by David Longstreath/AP Photo)

A woman wearing a burqa begs on a street in Mazar-i-Sharif on December 22, 2021. (Photo by Mohd Rasfan/AFP Photo)

Skywhale and Skywhalepapa, created by artist Patricia Piccinini before flying over Melbourne on March 19, 2022 in Melbourne, Australia. It is the first time Piccinini's work Skywhales: Every Heart Sings has flown over Melbourne, as part of MPavilion. (Photo by Asanka Ratnayake/Getty Images)