Showing posts with label islands. Show all posts
Showing posts with label islands. Show all posts

Sunday, June 30, 2013

Creature Feature: Dwarf Fox.

As the previous entry hinted, low temperatures means relatively poor biodiversity. This makes a good portion of North America a wasteland compared to say, a rainforest. Does this mean we're completely bereft of unique, amazing creatures? Of course not. Here is just the thing to make you all feel good before Monday:


That is a dwarf fox, AKA island fox. It is native to exactly 6 of the 8 Channel Islands in California, with a unique subspecies for every island. Small predators eat small prey, like rodents, crabs, and fish. Interestingly, they can be found active during both day and night, depending on season.

Yes, these foxes are small. They weigh 6.2 pounds, tops. They are frequently smaller than a house cat. Invasive species not withstanding, they are the largest land animals in the Channel Islands. It's the biggest fish in a small pond with very small fish. That's insular dwarfism for you.

Science has proven that wolves have the closest thing in nature to a human family, but dwarf foxes give wolves a run for their money. They stay with one partner all their lives, and their young stay 1-2 years with mommy and daddy. Next Valentine's Day, make your lover a card with dwarf foxes on it. It'll be even cuter if you explain that these foxes are monogamous and keep their kits for a relatively long time. 



You know what makes these guys even more awesome? They're living proof that humans can restore endangered species if they really try hard enough. I detailed the decimation of the bald eagle roughly a year or two ago; the baldies around the Channel Islands were keeping the foxes from being eaten by golden eagles, who are larger. Like on many islands, feral domesticated animals were also at fault; these were eventually removed via hunting programs. Canine distemper cut one population by 90%. The fox was driven to numbers as low as 15 in the 1990's.

Today? 2,500 dwarf foxes. Conservation efforts did these little furballs wonders. The species is still listed as critical, but that recovery is amazing. That should brighten your day....now get back to work. ;)

Tuesday, April 23, 2013

Creature Feature: Tropicbird.

If you've ever been on Cracked.com, you will see constantly-updated lists of real things that are not PhotoShopped. Well, now it's time for one of our own. Your mileage may vary:

Source.


This is a red-billed tropicbird (Phaethon aethereus). There are only three species of tropicbirds, all of which focus around, well, tropical islands. They are usually cited alongside frigatebirds and boobies as some of the many odd birds of the Galapagos. Being seabirds, fish and squid are on the menu. They were once lumped in with pelicans, but really have no extant relatives.

Tropicbirds do not look like real birds. They look like the birds that would happen if someone who only had the vaguest idea of what a bird was designed a bird. The feet are small and positioned far to the back of the bird's body, with all four toes webbed. The white tail is long. It's a "derp here's a bird" design, if that makes any sense. Tail, feet, wings, beak, and almost no regard for proper avian anatomy. Yet it works.

Tropicbirds are meant to fly and swim. Aside from their wings looking undersized, much of their time is spent at sea. Their strange feet don't just look odd; they are all but useless, making the tropicbird barely able to waddle on land. They dive, get back up in the sky, then dive again. Those feet really are useless. Remember how the bird-of-paradise was once considered "footless?" Title claimed by the tropicbird instead.



As one might imagine, tropicbird chicks have it rough. They might not eat for days at a time, which is  why they have evolved fat stores. Unfortunately, this means the little tropicbirds have to hobble into the ocean and fast the fat off. Whaddya know? Binge diets are natural.