The amazing red crab migration of Christmas Island

by Gadling Staff on

Experiencing the annual red crab migration on Christmas Island is an amazing sight. This remote landmass, named for the day it was discovered in 1643, is an Australian territory that’s considered “the Galapagos of the Indian Ocean.” Sparsely populated, Christmas Island is ringed by the most hauntingly beautiful limestone cliffs, and shaped something like a tiered wedding cake. Each year, Christmas Island’s beaches are filled with an annual migration of millions of the local red crabs.

While there are fourteen species of land crabs living on the island, the sheer numbers of the animals during migration season (estimated to be as many 100-120 million crabs) is something visitors will never forget. In addition, each adult female crab gives birth to an estimated 100,000 babies!

From October through December, adult crabs make their way from the interior forests to the beaches to spawn. It is a slow-moving stampede. While the crabs are not aggressive, seeing a moving wave like a gigantic seafood smorgasbord is a little terrifying. Some of the animals are 50 or 60 years old, and they are very large (nearly 5 inches long). The males are larger, and the females have daintier claws. The colors of the crabs vary: some are orange and coral-red, with a rare purple animal now and then. They eat almost anything, including grass, fresh or rotting leaves, and even dung!

The annual crab migration has a significant effect on the activities of Christmas Island residents. Signs that announce “Crabs cross here” are posted across the island. Crabs on the golf course create special rules during the migration, and shouts of “holy crab!” are heard often. They surround houses, get into the laundry and enter schools. Residents have even developed special crab-related expressions in honor of this strange event. Saying that someone “has a face like a smashed crab” is not a compliment, and “He’s off like a bucket of red crabs in the hot sea” is something better understood after experiencing the event.

While some locals do eat the red crabs, (they are edible and delicious) crab dinners are frowned upon by local government. Each year up to two million of the red crabs fail to complete their marathon journey because of hungry residents, squashing by cars, dehydration (it’s a long walk from the forest) and even cannibalism (watching them eat each other is terrifying!). The smell of dead crabs creates a pungent and unappetizing.

Jimmy Buffett once penned a song about this peculiar island: “How’d you like to spend Christmas on Christmas Island? How’d you like to spend the holiday away across the sea? How’d you like to spend Christmas on Christmas Island? How’d you like to hang a stocking on a great big coconut tree?” Buffett neglected to mention one very important detail: this Christmas “paradise” is swarming with millions of red crustaceans. Talk about false advertising!

** Images courtesy of the Wikimedia Commons Project **

Mozambique attracting more tourists

by Sean McLachlan on

Mozambique is enjoying a tourism boom, but it falls short of what officials in the large southeast African nation hoped for. According to the latest figures, tourism earned the nation $195 million last year, up $10 million from the previous year. This figure only accounts for hotels and other easily tracked income, not money spent in shops or for informal tours. More than 1.5 million people are visiting the country annually.

It’s easy to see why. There are long stretches of beautiful beaches and several national parks and reserves rich in wildlife. Gorongosa National Park, for example, has everything from warthogs to zebras. Other parks have large populations of buffalo, elephants, wildebeests, and leopards.

Tourism officials aren’t entirely happy, though, because they had hoped to get many more hotel reservations for this year because of the World Cup in South Africa. This extra influx of visitors isn’t happening, although they have noted that they’re getting some South Africans who are fleeing the football madness and going to a quieter country!

Have you visited Mozambique? Tell us about your trip in the comments section.

Photo of the Day (3.28.2010)

by Jeremy Kressmann on

It’s extremely hard to take good photos of wildlife. Animals move around a lot, many are active only at night and in the case of sharp-tooth predators, getting close can be downright hazardous to your health. That’s why I’m loving Flickr user toffiloff’s up-close-and-personal crocodile photo, taken at the Singapore Zoo. Sure, the danger element is gone, but there’s plenty of great technique at work here: the depth-of-field close-up on the croc and the beautiful reflection in the water’s glassy surface lend the image a true “National Geographic” feel. It makes a nice companion to this shot from earlier this month, doesn’t it?

Taken any great wildlife photos during your travels? Submit your best shots to the Gadling group on Flickr and we might just pick one as our Photo of the Day.

Scientists struggle to preserve Grand Canyon wildlife

by Sean McLachlan on

The Grand Canyon needs more water.

That’s the assessment of a U.S. Geological Survey report that studied the results of a 2008 experiment. A controlled flood let more water through Glen Canyon Dam in order to replicate the effects of annual flooding from before the dam was built. Sediment from the flood increased the size of sandbars along the path of the river. These sandbars are an essential habitat for the plants and animals living in the canyon and also make handy beaches for weary hikers who have just made it to the bottom.

Unfortunately, the sandbars all but washed away after six months. The USGS and Interior Secretary Ken Salazar are calling for regular controlled floods, especially in spring when the tributaries of the Colorado River naturally flood, and March in order to stop seeds from the nonnative tamarisk from germinating and helping native trout as they grow to maturity. The Glen Canyon Dam was built in the 1960s amid a major controversy over how it would change the river. Several local species have drastically reduced in number because of changes to water temperature and flow.

The problem is, the dam on the Colorado River is a major source of hydroelectric power, and any flooding would reduce the amount of electricity generated. It’s a classic case of industry vs. environmentalism, but the huge amount of money generated from tourism to the Grand Canyon may mean the environmentalists have the money on their side for a change.

Uganda expands gorilla safaris

by Sean McLachlan on

Uganda has started work on habituating another mountain gorilla group to humans in order to expand safaris in its famous Bwindi Impenetrable National Park.

Habituation involves gradually exposing gorillas to humans in order for the highly territorial groups to get accustomed to human presence. Once the gorilla groups become used to humans being around, they are much less likely to get frightened or aggressive when safari tours show up.

Safaris are big business in Uganda and those that track gorillas constitute about half of the country’s tourism revenue.

Bwindi Impenetrable National Park, located in southwest Uganda, is made up of 331 square kilometers of thick jungle. Visitors have to travel through it on foot. It’s a tough journey but allows adventure travelers the chance to see one of the richest varieties of wildlife of any East African park. About 340 endangered mountain gorillas live in the park; sadly that constitutes half of the total population in the world. Because of its importance in protecting the gorillas and other plant and animal life, Bwindi is on the UNESCO World Heritage List.