Safari park visitors were terrified and screaming when a lion attempted to attack them in the city of Monterrey, in the north-eastern Mexican state of Nuevo Leon.
Luckily no one was injured in this incident.
This is the moment tourists flocked to see a dead whale - despite warnings a huge swelling coming out of its head could explode at any moment.
The giant carcass was discovered washed up on a beach in Pelluhue, in the central Chilean region of Maule.
Although the whale is about 52ft long, pictures show how an enormous balloon-like swelling dwarfs its entire head.
Thought to be a minke whale, the carcass has attracted tourists and scientists - but there are already fears it could explode.
President of the Vets of Wild Fauna Association Betsy Pincheira said: 'The protuberance is caused because of the common decomposition process. It is an accumulation of gas, generally methane.
'I wish people would not approach because this could explode.'
According to the vet, who has not visited the scene, the swelling could also be part of the stomach being forced up and out through the head as internal gases deform the animal's insides.
Mauricio Ulloa, head of the Unit of Preservation and Rescue of the National Fish and Aquaculture Service, said the whale could have died up to two weeks ago.
He added: 'The sun causes the increase of the temperature of the gases inside the whale and this could cause some parts of its body to swell, such as the tongue or the intestines.'
But not all experts agree with the gas-buildup hypothesis.
Some say the swelling might have been caused when the whale crashed against a boat or rocks, an accident that would have eventually led to its death.
Authorities are currently on the scene to investigate the carcass and discover the cause of death.
The skin-crawling moment a bunch of deadly eastern brown snakes hatch from their eggs has been caught on video.
The footage captured by snake catchers in Adelaide shows a mound of eggs with a baby poking its head out as it begins to hatch.
Slithering around the eggs is up to 14 other brown snakes which have just hatched after 60 days.
This is the heroic moment conservationists braved white water rapids to save an orangutan from drowning in a raging torrent.
The orangutan was spotted struggling to hold on to rocks in the middle of rapids in the Lesan River in Indonesia's East Kalimantan province.
It is not known whether the endangered ape was trying to cross the river in search of food or a mate, or whether it had simply fallen out of a tree.
But it would surely have drowned had conservationists from the Centre for Orangutan Protection (COP) not spotted the struggling primate and launched a rescue operation.
First, they hacked off tree branches to try to pull the orangutan to dry land but it could not reach the branch.
They then attached branches together to create a bridge across the rapids for the agile ape to crawl along.
One man braved the torrent by standing in the raging river to help secure the temporary bridge and to give the animal a nudge in the right direction.
Finally the orangutan made it across the branches to dry land, immediately heading for the safety of the trees.
A video of the rescue operation filmed by conservationists is melting the hearts of animal lovers after being posted on social media.
Ken Hardi, the founder of COP, said: 'This was about life or death. Orangutans do like water, but they do not swim.
'We found this poor orangutan trapped in swift water by accident when we were doing a survey. If we had been any later, the orangutan may have been dead.'
East Kalimantan, which comprises the eastern portion of Borneo, was once covered by tropical rainforest.
But illegal logging has removed much of the original forests, destroying the natural habitat of the region's famous orangutans which are now critically endangered.
“PETA appeals to Floyd Mayweather to be a real champ for animals and allow his ‘Christmas present’ to be moved to a wildlife sanctuary.”
Floyd Mayweather, though, is no stranger to public criticism, so it would be a surprise if he gave up his pet tiger any time soon, after a video posted on Instagram by a member of his team showed the undefeated boxer holding the animal on a lead as it strolls around a busy room.
After a short time, another smaller tiger enters the room, also on a lead, which then gets crossed with Mayweather’s lead, resulting in some momentary confusion between the boxer and another man holding the lead of the other tiger.
This is the sickening moment a driver smashed into a deer at 66mph.
Shocking dashcam footage shows the deer leap into the road giving the driver no time to react.
The car batters the animal as the front headlight shatters and the debris litters the A120 near Colchester, Essex.
Holidaymakers caught the gruesome moment a fully-grown python dislocated its jaw and swallowed a hyena whole.
Jos Bakker was on holiday in Kenya when he came across the rare sight of the rock python ingesting the large African carnivore.
Shocking footage has emerged showing a brazen man kicking a harmless cat over a fence in a sickening attack.
The video, filmed on a mobile phone, shows the man teasing the four-legged feline with food in his hand as he positions the cat in front of his feet.
Standing on its hind legs, the tiny cat attempts to reach for the treat in front of the man before booting the animal over the fence.
A loud thump can be heard moments before the cat disappears into the distance, prompting laughter from his friend, who was filming the incident.
It's not clear where the incident took place.The footage was uploaded onto Facebook on Wednesday afternoon - and has since attracted more than 240,000 views.
The video has been met with anger, with many describing the attack as 'horrible', 'absolutely disgusting', 'cruel' and 'heartbreaking'.
One woman said: 'I'm in absolute shock and fury!! I thought it was going to be a lil trick. This is disgusting! Ashamed we are a part of the human race!! Makes me sick!'
A captive cheetah had to be rescued after it got its hand caught on a feeding line.
Rangers at Fota Wildlife Park in Ireland struggled to saved the panicked animal as it sprinted around and howled in pain.
Its paw was stuck on the hook of a mechanised pulley which drags animal carcasses for the cheetahs to ravage at feeding time.
A 13-foot python swallowed an entire antelope and then regurgitated it on a farm in Groblersdal, South Africa. The snake can be seen stretching its mouth extremely wide to accommodate the animal. Once the snake was finished, it was caught and relocated.
Dutch police aren't messing around with these Turkish protesters as they continue to unleash their police dogs on protesters who are refusing to comply with orders as well is assaulting officers by pelting them with stones, rocks, and anything else they can throw.
A circus trainer was showing off by putting his head inside a crocodile's mouth - when it snapped its jaws and bit his face.
The man was entertaining crowds at a circus on Saturday night in Ha Nam province, Vietnam.
The regular animal that had been performing the stunt for many years had died earlier in the day and it was left to an inexperienced younger stand-in reptile.
The man puts his head inside the crocodile's mouth but seconds later it clamps down its jaws and thrashes its head from side to side.
He pulls free and emerges holding his hands to his head with blood pouring down his face after the incident at the Liem Commune in the Thanh Liem district.
Pham Van High, Thanh Liem District Chairman, said the circus troupe was part of the Department of Culture, Sports and Tourism and officials were now investigating and speaking to witnesses.
He said: 'There was rainy weather on Saturday evening but the circus entertainers did not want to betray the audience.
'Prior to the performances, the circus brought a crocodile but unfortunately it died and the replacement crocodile was put on instead.
'Fortunately, the actor was only wounded in the incident. Now he is being treated in hospital in Henan province. By this morning, the health situation of the actor was better.
'An investigation has been handed over to the police chiefs.'
This shocking video shows the moment a group of people crack open a monkey's skull before eating the animal's brains.
The clip, shot in Vietnam's Nghe An province, shows a young man hacking at the poor creature's head with a butcher's knife as it lies, still alive, chained up on a log.
The monkey, which is covered in a pink cloth, at first appears to struggle and makes final desperate squeaks of terror as the man continues to batter it with the 12-inch blade.Once the animal's skull is sliced off, the laughing man then digs out its brains with a table spoon before taking a mouthful of the the pink flesh.
He then passes the brains to the rest of the group, who swallow them down with glasses of water.
According to the Mirror, the clip was sent to animal lover Ben Sovat from one of the group involved.
A scuba diving instructor was leading a group of tourists on a dive off Cayman Brac when he made the bizarre discovery of a shark with a kitchen knife sticking out of its head. Brett Johnson coolly swam down and removed the knife from the shark, which appears to have survived the ordeal.
A dramatic video has emerged of two leopards entering a battle to the death with a huge rock python in South Africa.
The footage, shot in Kruger National Park last summer, shows a leopard cub reaching out for a snake with its paw before the python launches at him.
The cub's mother then tries to dislodge the snake from a hole in the ground resulting in her getting bitten.
The nonvenomous African rock python kills its prey by constriction and eats animals up to the size of antelope and crocodiles.
According to the video uploader, the leopard eventually killed the snake and fed on its carcass.
Conservationists recently recorded footage of a Yunnan snub-nosed monkey giving birth to her baby in the southwest China province.
The conservationists said that she showed signs of going into labor on the morning of Feb. 24 near Baima Snow Mountain.
The clip shows the female monkey moving about restlessly, after which a male monkey goes to groom her. Soon a group of females gathers around her, as if they were creating a “delivery room” for her.
After giving birth to the baby, another monkey snatches the baby, only to be chased down by the mother. The child, now safely snuggled in his mother’s long arms, has had quite a day.
Also known as black snub-nosed monkeys, these primates are an endangered species who live mostly in China.
Their population now ranges in the thousands compared with that in the 1980s, when they were close to extinction.
Drones have become increasingly popular for filming wild animals from a close distance. But on Wednesday, one poor drone fell victim to the very subject it was trying to capture: a group of Siberian tigers.
The impressive footage was filmed at the Siberian Tiger Park in northeast China’s Heilongjiang Province. As the drone approached to get close-up footage of the big cats, they chased it down before one agile feline snatched it out of the air.
Listed as an endangered animal in China, Siberian tigers have seen their number drop sharply in recent decades due to a change in habitats and illegal poaching.
Earlier this month, the Siberian Tiger Park already made international headlines after pictures circulated online of obese tigers at the park.
Apparently dogs are evil according to these 2 Muslim women who seem to have a problem with the man being friendly to them and stating that it's a friendly dog and that there are more than welcome to pet him.