Deserts are not easy places to call home. Broiling in the day, frigid at night, and lacking ample water, these landscapes test their inhabitants. The creatures that call deserts home have adaptations to help them survive and thrive in these harsh conditions. Many of these creatures never need to drink and have skin or scales that enable them to hoard what little water they require; some have evolved to move and be active solely at night to avoid the punishing sun. Here are 15 of the strangest animals found in deserts around the world.
1-
Fennec fox
Desert
animals don't get much cuter than fennec foxes (Vulpes zerda).
These teeny canids are smaller than domestic cats, measuring 14 to 16 inches
long, not including their tails, but they sport enormous ears that can grow to
be 4 to 6 inches long. These ears help the foxes shed heat and listen for prey
under the sand. When the foxes catch the sound of rodents, insects or other
small animals they predate, they use all four paws to dig out their quarry in a
shower of sand.
Fennec foxes are well-adapted
for life in African and Arabian deserts. Their pale fur camouflages them
against the sand; it also grows on the bottoms of their feet to give them
traction while running in the sand and protects their feet from the hot desert
surface. When air temperatures rise, the foxes can pant up to 690 times per
minute to cool down. Fennec foxes also dig elaborate burrows to escape the sun
in the hottest part of the day.
2-
Screaming hairy
armadillo
Perhaps
less cute than fennec foxes — but no less well-adapted to their desert
environment — are screaming hairy armadillos (Chaetophractus vellerosus).
These armadillos really do scream; when threatened, they make a terrible cry
that sounds similar to the wails of a newborn human baby. These screams are
designed to startle predators, or to attract other predators to the scene,
perhaps distracting an attacker and enabling the armadillo to get away.
Screaming
hairy armadillos are small, weighing only 1.9 pounds. They live in the Monte
desert of Argentina, Bolivia and Paraguay, preferring spots with loose, sandy
soil where they can dig burrows, according to the Smithsonian National Zoo. The
armadillos rarely need to drink. Their kidneys are highly efficient, and they
get most of the water they need from the plants they eat. So screaming hairy
armadillos are opportunistic eaters — they also consume insects and small
animals such as lizards and rodents.
3-
Hairy desert
scorpion
Among
the many scorpion species that call deserts home, the hairy desert scorpion (Hadrurus
arizonensis) is a standout. These sorpions can measure between 4
and 7 inches long, making them North America's largest scorpions. Though they
are a drab olive-green color, hairy desert scorpions fluoresce under
ultraviolet light. No one knows exactly why scorpions fluoresce, but the best
way to find these shy nocturnal predators is to take a UV light into the desert
on a summer night, when they tend to be most active.
Hairy desert scorpions are
found in North America's Sonoran and Mojave deserts, as well as in Nevada and
Utah. When looking to mate, male and female hairy desert scorpions lock pincers
in a mating dance that looks more like a wrestling match. In fact, if the male
does not flee quickly after depositing his sperm, he might find himself
becoming his mate's next meal.
Females gestate their young for
six to 12 months, live-birthing up to 35 babies that piggyback on their
mother's carapace until they're large enough to hunt on their own. Fortunately
for humans, desert hairy scorpions would rather flee than sting, and their
venom is relatively weak. For most people, the sting is similar to a bee's
sting.
4-
Harris's hawk
Harris's
hawks (Parabuteo
unicinctus) are oddities in the falcon world. These impressive
red-winged raptors sometimes hunt in packs, working together to pursue their
prey around bushes, thickets and the saguaro cactuses of Arizona's Sonoran
desert. The birds eat lizards, other birds and small desert mammals such as
kangaroo rats and ground squirrels. When they catch large prey, they'll share
the meat with their fellow hunters, according to the conservation
nonprofit Audubon.
These birds also often work in
groups to raise their young. Two males may mate with a single female, and the
trio work together peacefully to raise any ensuing hatchlings. Hawk siblings
help each other, too; an older brood from earlier in the season may stick
around to bring food to younger broods.
5-
Desert ironclad
beetle
The
desert ironclad beetle (Asbolus verrucosus) is a tank of
an insect. Its powder-blue color comes from a waxy coating that helps the
beetle retain moisture in the dry Sonoran desert. The bumps on the beetle's
shell give it an armored appearance that is even tougher than it looks. The
ironclad beetle subfamily is known for its ultra-strong exoskeleton — it’s so
strong, these beetles can shrug off being stepped on by a human.
Desert
ironclad beetles are also known as "death-feigning beetles" for their
defensive behavior in the face of threats. When alarmed, the beetles roll over
and play dead, according to the Cincinnati Zoo and Botanical Garden.
They eat plants and decaying organic matter, and — like many desert denizens —
rarely, if ever, need to drink.
6-
Sand cat
A
softer, fuzzier desert denizen is the desert sand cat (Felis
margarita). It is the only cat species that makes its home in
true desert environments. Desert sand cats are found in the Sahara desert, the
Arabian Peninsula, Turkmenistan, Kazakhstan and Uzbekistan. Though they look
remarkably similar to fluffy domestic kitties, sand cats are elusive and rarely
seen by people. They're secretive and difficult to track, according to
the International Society for Endangered Cats (ISEC) Canada.
Researchers who tried to observe these animals in the wild found that the cats'
fur-lined paws left no tracks, and their light-colored coats made them
challenging to spot. What's more, the cats crouched low and closed their eyes
against searchlights at night, hiding their reflective retinas.
Sand cats are stealthy hunters
and are able to kill snakes as well as desert rodents and lizards. Their mating
call sounds like a dog's bark.
7-
Desert
long-eared bat
Once
dubbed "the hardest bat in the world,"
the desert long-eared bat (Otonycteris hemprichii) is found
in North Africa and the Middle East. What earned this bat species that
nickname? Well, its main diet is scorpions.
Desert
long-eared bats hunt scorpions by falling onto them out of the sky and
wrestling the venomous arachnids into submission. The bats are unbothered by
the multiple scorpion stings they often receive in the process, according
to research from Ben-Gurion University of the Negev in Israel.
Ben-Gurion University researchers also found that desert long-eared bats can
switch the settings on their sonar, using one type of echolocation to seek out
ground-dwelling prey like scorpions and another type to hunt down flying
insects.
8-
Pink cockatoo
Colorful
birds are often found in lush, tropical rainforests and are scarce in arid
regions — except if that region happens to be in Australia’s interior. One of
the continent's most beloved bird species is the pink cockatoo (Lophochroa
leadbeateri), which ekes out an existence in the semi-arid and arid
Australian Outback.
Identifiable
by its showy orange-and-yellow crest and its blush-shaded body, the pink
cockatoo is divided into two subspecies: one found in western-central Australia
and other in the east, according to the Australian Museum. These pretty birds live off
seeds and insects. They mate for life, and they can be found prancing on tree
branches, bobbing their heads up and down to attract mates.
These iconic Australian birds
have a variety of names and nicknames, according to FNPW. They're also known as
Major Mitchell’s cockatoos (after the early English explorer who wrote about
them for a global audience), as well as Leadbeater’s cockatoos, desert
cockatoos, cocklerinas, chockalotts and — adorably — wee jugglers.
9-
Sidewinder
Perhaps
nothing screams "desert" like the image of a sidewinder rattlesnake
undulating over a sand dune, leaving behind bizarre curved tracks. Sidewinders
(Crotalus
cerastes) can slither at speeds of up to 18 mph (29 km/h) using
their strange sideways crawl — even across loose sand.
Sidewinders are ambush hunters.
They bury themselves in sand, leaving only their eyes peeking upward. When a
lizard happens by, they snap forward and spring the trap. These snakes strike
in the blink of an eye, injecting venom that ]attacks both the blood and the
nervous system of unwary prey.
Sidewinders are found in the
southwestern United States and northwestern Mexico. They can be recognized by the
protruding horn-like structures shading their eyes, which may keep sand from
obscuring their vision.
10-
Desert pupfish
Fish
in the desert? Desert pupfish (Cyprinodon macularis) are small,
silvery fish that can survive remarkably well in parched conditions. Pupfish
have evolved to thrive in water that flows through arid regions. They're found
in California's Salton Sea and its tributaries, and in waterways along the
lower Colorado River in Mexico.
These
fish require a high degree of resiliency to survive in a desert's meager or
brackish water sources. Special adaptations enable pupfish to survive despite
conditions that would be deadly for most fish. Pupfish can live in water
ranging from fresh to 70 parts-per-thousand salt They can live in water as cold
as 40 degrees Fahrenheit and as hot as
108 degrees F They can even live in water as poorly oxygenated as 0.1
parts-per-million (ppm) oxygen (most warm-water fish require 5 ppm oxygen in
their water to survive.
Despite their toughness, desert
pupfish are endangered in California, threatened by the introduction of
non-native species and habitat loss.
11-
Thorny devil
No
list of weird desert animals would be complete without a nod to lizard-kind.
And no nod to lizard-kind would be complete without mentioning the thorny devil
(Moloch
horridus), the sole species in the genus Moloch,
named for an ancient, sacrifice-demanding god worshipped by the Caanites and
mentioned in the Hebrew Bible. Thorny devils are only found in Australia. They
grow to be just over 8 inches long from nose to tail and are covered with sharp
spines that serve as a defense against predators.
Thorny
devils also have two heads — really. One is a false head, a protuberance that
sits on top of the devil's neck. When threatened, a thorny devil will lower its
real head, presenting the false head as a decoy. Thorny devils also have a
distinctive jerky walk that may confuse predators.
As intimidating as thorny
devils may look, they're really only a danger to ants, which they lap up by the
thousands with their sticky tongues, according to Bush Heritage Australia.
These desert denizens "drink" through their skin, collecting dew and
moisture from sand with tiny channels between their scales. These straw-like
channels, which direct the precious drops to the lizards’ mouths, are just one
example of the creative hydration mechanisms that keep animals alive in the
driest places on Earth.
12-
Saharan silver
ant
Saharan
silver ants (Cataglyphis bombycina) get their name from their
silky, silvery coats. Yes, these ants have hair.
Unlike
most desert animals, Saharan silver ants forage in the middle of the day, when
the Sahara can reach temperatures of up to 158 degrees Fahrenheit. This
strategy helps them avoid predators but requires them to cool themselves very
efficiently. A 2015
study in the journal Science found that the ants'
silver hairs are shaped to help them reflect and radiate both sunlight and heat
across the electromagnetic spectrum, keeping the insects cool.
13-
Elf owl
Adorable
elf owls (Micrathene whitneyi) are only the size of a sparrow,
making them the world's smallest raptors, according to The
Cornell Lab. Found in the southwestern
United States and Mexico, these owls make their nests in old woodpecker holes
in large saguaro cactuses or in trees. They avoid the desert heat during the
day and instead use their incredible eyesight and hearing to hunt at night,
pouncing on prey such as scorpions, insects and centipedes, according to
the Arizona-Sonora Desert Museum.
14-
Tarantula hawk
Tarantula
hawks aren't birds: They're a group of predatory wasps that prey on — you
guessed it — tarantulas. These wasps are found around the world, but several
species that dwell in the United States live in the desert southwest. Pepsis
thisbe, for example, is a species of tarantula hawk that lives at
the Grand Canyon. Wasps of this species have bright-orange wings and can grow
up to 2 inches (5 cm) long, according to the National
Park Service.
What really makes these wasps
unique, though, is their habit of using tarantulas as living food for their
larvae. Mother tarantula hawks paralyze tarantulas with their venom, carry them
back to their nests and seal them in, laying their eggs in the spiders'
abdomens. As the larvae grow, they feed on the paralyzed tarantulas, saving the
vital organs for last.
15-
Greater bilby
Looking
a bit like a cross between a shrew and a bunny, greater bilbies (Macrotis
lagotis) are found in deserts and grasslands in Australia. These
cute creatures are about the size of a housecat. They spend their days in
tunnels that they dig out of the dry Australian soil, and they spend their
nights foraging for food such as termites, tubers and grubs. Like many desert
animals, bilbies get all the moisture they need from their food, according
to Bush
Heritage Australia.
No comments: