When driving along the road you may often see warning signs of animal crossings. While some areas think this is sufficient, others are considering building animal crossings above roads that will allow wildlife to safely cross human-made barriers like highways.

image © Kristy Faulker / Mercury

After having to occasionally close down the road in order to let the tens of millions of red crabs cross safely, the people of Christmas Island decided to build the bridge shown above to guide the crabs and move them safely along.

image ©AP

For years two distinct elephant populations were separated by a road. Now a tunnel sits in the rolling hills below Mount Kenya allowing the elephants to successfully cross a major road without putting themselves or motorists in danger.

image © Metro UK

After discovering multiple turtle fatalities due to Japan Railways, The West Japan Railway Company and Suma Aqualife Park in Kobe built the turtle tunnels as shown above. These turtle escape routes are said to have already saved 10 turtles.

image © SA 2.0 via Commons

In Longview, Washington, a resident named Amos Peters decided to take action to protect squirrels after seeing too many being harmed on the road. Using aluminum piping covered with an old fire hose, Peters created a roadway for squirrels that looks like a mini-suspension bridge.

image © WikiMedia

In Banff National Park, Canada, they have developed a cross walk that has protected various wildlife such as bears, elk, and cougars.

image © WSDOT

While Interstate 90 helps connect people, it also causes danger for surrounding wild life. That is why Washington's first wildlife overpass will provide safe passage for bear, elk, foxes, and other animals that cross over the Interstate 90 east of Snoqualmie Pass.

Hanging over the Hume Freeway in Victoria, this rope bridge has been saving lives of multiple wildlife such as Microbats, frogs, ducks, parrots, and multiple other birds like the cockatoos seen above.

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Sources: Neatorama, Pulse, Oddee, Daily Mail & India Times