The four-year-old lynx was last seen in southern Portugal in 2016.
Here's a roundup of some of the brightest stories from the week to cheer up your Friday.
“The confirmation of this pregnancy through artificial insemination represents an historic event for our organisation but also a critical step in our effort to save the northern white rhino."
If local communities had property rights to large animals like whales, elephants or rhinos, would preserving them be easier?
Staff say the trio were all alone when they were found in a mountainous region, with their mother nowhere to be seen
A projection illuminated Queen Elizabeth's London home to celebrate a Commonwealth conservation initiative
The new list ranks reptiles on a combination of how endangered and unusual they are.
There are now only two females of the subspecies left in the world.
Some 1.5 million penguins have been found on the remote Danger Islands.
Romeo faces extinction as the only Sehuencas frog in existence. To help him the Global Wildlife Conservation has added his profile to the dating site Match
Northern White Rhino's keepers put Sudan on Tinder as a money-raising stunt, and to raise awareness that the species will go extinct if Sudan does not father children soon.
A new state record has been set for the number of cold-stunned sea turtles found along the coast of Texas, according to the US National Park Service.
Yuan Meng is five months old and weighs 11 kilograms.
But the threat of extinction remains for African elephants in other parts of the continent.
ECJ ban on logging in Europe's oldest forest 'welcomed' by conservationists.
Researchers claim they trained the animals to ‘identify’ the faces of celebrities.
A female hippo decided to return to the zoo in Isreal where she made her escape from, after tasting the grass outside her usual living area.
Some breakthtaking colours here.
Reconstruction effort uses children's song title to attract temporary volunteers.
A 'dramatic' decrease of flying insects has scientists worried about the environment
Fifteen photographs have been chosen as the best wildlife pictures of the year
Lisbon's seed bank protects the future of Portugal's flora.
Weather experts were left mystified after spotting an unusual colourful cloud on their radar.
You are invited to step inside a giant hive to communicate with bees.
A vulnerable young albatross at the heart of a special breeding programme in New Zealand has taken flight for the first time.
Bird lovers have been
It comes amid conflicting messages around whether the species is less endangered than before.