Everyone loves an optical illusion, but the latest visual tease to leave the internet confused is something a little different.

WARNING: GRAPHIC CONTENT: Shocking surveillance footage has captured the moment a mother managed to save her 2-year-old son.

The dog was spotted by a rescue helicopter on Saturday morning after going over the top of the hill on Tuesday.

A Zimbabwean high court has dropped charges against the professional hunter, Theo Bronkhorst, who led the expedition that killed prized lion Cecil.

Genetic evidence suggests that man's best friend has been enjoying food scraps from humans since the earliest days of living together, even adapting to digest changes in human diet.

Source: Twitter @EuropeanTour. A band of mongooses invaded the course on the European Tour.

Behind the scenes footage from the first episode of Planet Earth II shows the gruesome fate of hatchlings who didn't manage to escape.

Source: BBC / Goal.com. Goal.com overlaid the iguana run clip with commentary from a couple of Leo Messi’s greatest goals, and the result? We’ll let you see for yourselves.

Source: Liveleak. They are two of the deadliest spiders in the world - containing venom that can kill a person in as little as 15 minutes. One homeowner filmed the moment he caught the arachnids fighting over a ventilation shaft outside his home in Australia.

BBC viewers were scared stiff last night by dramatic footage in the long-awaited series Planet Earth 2 that showed dozens of snakes chasing baby iguanas.

Source: BBC. Snakes hunting as a pack chase down baby iguana in amazing footage for BBC's Planet Earth II that even shocked Sir David Attenborough

The Department of Conservation is pleading for information after a sea lion pup was killed on the Otago Peninsula.

Two penguins got into a vicious brawl after one discovered his "wife" having an affair with another penguin.

Establish good habits early You know the saying: you can't teach an old dog new tricks. Get your pup used to a regular grooming routine

When dozens of fish were left gasping after vandals slashed their tanks, panicked staff at a country park decided to give them the kiss of life.

An adorable dog that was lucky to survive the brutal treatment it received has showed off her amazing recovery alongside a hunky firefighter in a charity calendar.

The SPCA is renewing calls for a ban on the public sale of fireworks and launched a survey asking their animals' experience with fireworks.

The identity of the hunter who killed Pedals the bear with a crossbow will remain secret after the authorities in New Jersey refused to release it.

Cat owners share their playful pets quirkiest habits on Snapchat

Source: Sophie Roselt

A photo of an enormous Hunstman spider spotted in Queensland, Australia, is terrifying social media users.

Source: YouTube/Brosharsadventures. An American traveller has captured video of a shark casually swimming very close to surfers in Byron Bay.

A pig that was on the loose on Auckland's Northwestern Motorway during peak hour has now been captured.

CCTV footage captures a Nile crocodile getting into a private pool with a couple and attacking. The man quickly scrambles for safety by the edge of the pool leaving his wife behind. The woman luckily survived. She managed to fight of the crocodile before jumping out of the pool. She sustained a couple of bites. They left the reptile in the pool.

Giant antlers discovered in an Irish bog and which have hung in a Kiwi hunting lodge are going under the hammer.

The Irish Elk died out in the Ice Age, about 11,000 years ago. The antlers and skull are quite remarkable, and extremely rare, especially for NZ. They have estimate of $8k to $15k.

WATCH: Curiosity turns into horror for two fisherman as a great white circles their boat.

A puppy that endured massive swelling to its face and could not open its jaw following a beating is one of the cases included in this year's SPCA List of Shame.