Home – worldwide
Habitat – tropical and temperate forests, grassland, suburban
Niche – most are herbivorous, some species feed on other insects
Favorite Food – plant juices
Length – up to 1 inch
Notable Feature – they produce a foul-smelling liquid to ward off predators
There are over 5,000 species of stink bugs worldwide, and they range in color from drab green and brown to brightly-colored red and yellow. Most species suck juices from trees and shrubs, but a few prey on other insects. As a result of their feeding habits on commercially-valuable crops, some species are serious pests to humans.
Stink bugs are also known as shield-bugs because of the shape of their bodies. They have broad “shoulders” that taper into their abdomens below their folded wings. They have strong angular legs for gripping plant stems and have specialized mouthparts for piercing and slurping. They are very common insects and can be found nearly everywhere in the world where there’s vegetation.
Stink bugs are so-named because of their defense against predators. If they’re disturbed, they will eject a noxious liquid from special glands in their thorax. The smell and taste of this bitter chemical weapon is enough to deter many predators and to put off a casual human collector. The bright coloration of many species is a warning sign to predators that it doesn’t taste very good. Sometimes coloration alone in the animal kingdom does the trick without needing to deploy the weapon being advertised.
Home – North and South America
Habitat – varied: tropical and temperate forest, grassland, desert, and mountains
Niche – nocturnal hunter
Favorite Food – small mammals
Length – up to 2 feet
Weight – up to 5 pounds
Status – Common
Threats – Habitat destruction
The Great Horned Owl is the largest owl in North America, and its range extends from Northern Canada down to Tierra del Fuego. It gets its name from the tufts of feathers on either side of its head that resemble horns from a distance. A silent killer of the night, it is one of the world’s most successful birds.
Great Horned Owls are some of the most sedentary birds in the world, rarely venturing far from their home tree. Because of their adaptations, they don’t need to fly far in search of food. Small mammals are plentiful across the Great Horned Owl’s wide range across North and South America, and this amazing bird has an extensive hunting arsenal. Its binocular vision is so acute that it can spy a mouse over 100 feet away, and its hearing can detect tiny movement in the leaf litter below its tree. Although owls can’t move their eyes in their sockets, they can turn their heads almost completely around their axis, allowing them to zero-in on prey. Finally, the soft feathers of an owl muffles the sound of flight, making its deadly approach nearly silent up until the point it sinks its razor-sharp talons into an unfortunate animal.
Great Horned Owls make their nests in trees, usually in a hollowed-out trunk or the abandoned nest of a hawk or crow. In sparser areas, they will nest in rocky alcoves. Although the female is the one to incubate the eggs, both parents will tend to the fledgling chicks for about 6 weeks until they leave the nest. Great Horned Owls are very territorial birds, even when not rearing young, but will defend their nests with resolve. They have been known to dive-bomb humans to frighten them away from their trees if they get too close.
Habitat destruction is the greatest threat facing Great Horned Owls because of their dependence on trees for nesting. However, their wide range has afforded them a buffer against encroachment, and they are still common in many regions of North and South America.
Home – Western, Central, and Eastern Africa
Habitat – grasslands and tropical forest
Niche – large herbivore
Favorite Food – grass
Length – up to 8 feet, nose to tail tip
Weight – up to nearly 700 pounds
Status – Lower Risk for Extinction
Threats – hunting, habitat loss
Waterbucks get their name from their main defense against predators on the African Savanna. When threatened, they will bolt to the nearest body of water and quickly submerge themselves. Although it’s not the most daring way to save skin, lions don’t swim. The French also gave a name to these giant antelopes that didn’t quite stick through the ages – greasy kob. The name refers to an oily secretion produced on the fur that acts as a smell signature for other waterbucks as far away as 500 miles.
Despite its ability to evade land predators, life is still difficult for a large, tasty herbivore on the vast grasslands of Africa. Fewer than 20% of males will live long enough to defend their own territory against other males during the mating season. The male waterbucks that do pass this rite of dominance are left with something besides a plentiful supply of females. Waterbuck territories are carved out bordering rivers and ponds, where the grass is greener and the avenue of escape is wider.
Waterbucks are among the more common antelope in Africa, owing to their wide distribution and better adaptability to marshy environments than their relatives. Apart from crocodiles and lions, the biggest threat to waterbucks is man. They thrive on both grassland and plentiful fresh water, so if either shrinks, then so will waterbuck populations.
Home – Africa
Habitat – varied, from open grassland to scrub forest, desert, and mountainous regions
Niche – social pack hunter
Favorite Food – gazelle
Length – up to 4 feet, nose to tail tip
Weight – up to 80 pounds
Status – Endangered
Threats – habitat destruction, hunting, disease
African wild dogs are pack hunters, using cunning and strength in numbers to take down large prey like wildebeest on the open grasslands of East Africa. Although they are smaller than gray wolves, another well-known pack hunter, they are perhaps the most social dogs on earth, and use their developed behaviors to take down prey faster and larger than themselves. The packs average about 7 or 8 individuals, but some can grow as large as 20. Because of the size of the packs and their wide movement, African wild dogs hunt at least once a day to snare enough food.
Few predators are as formidable as a pack of African wild dogs. Individuals can run at sustained speeds of over 30 miles per hour for up to 3 miles without tiring. Their endurance is matched with an uncanny ability to execute intricate plans of attack, especially to catch animals that evade lead dogs. Usually the packs will attack smaller mammals like gazelles, but occasionally will take on large animals like zebra and wildebeest. When attacking the latter, the dogs will charge a herd in an attempt to separate the weak or sick individuals. Moving in, they will clamp down on the prey’s tail and lip, while other members of the pack bite at its underside to bring it down.
Like gray wolves, African wild dogs exhibit a strict hierarchy within the pack, with a dominant male and female seated at the top. However, these dogs are different in that there are twice as many males as females and all the males are related to each other in a pack. The dominant male gets mating rights and mating usually only occurs between him and the dominant female. Simultaneous births of litters do occur and when they do, they threaten the bonds of the pack. During these situations, fights break out and females battle each other for the right to raise the next generation, which often results in the youngsters being torn to pieces in the fight. Unlike other social dogs in the wild, the aggression with African wild dogs is usually confined to the females of the pack rather than the males.
After decades of persecution, habitat loss, and disease, the remaining populations of African wild dogs are scattered and thin. There are now fewer than 10,000 African wild dogs left in their natural habitat. Aside from their considerable natural adaptability, the one hope remaining for these amazing mammals is a strong conservation effort.
Home – Central and South America
Habitat – forests and grasslands
Niche – large insectivore
Favorite Food – ants and termites
Length – between 5 and 10 feet nose to tail tip
Weight – up to 85 pounds
Status – Vulnerable to Extinction
Threats – habitat loss and hunting
The giant anteater is one of Earth’s weirdest looking mammals. Sporting a long, tubular snout and a tail that looks whisked from an ostrich, this resident of South America shuffles throughout the rainforests and plains searching for what concerns him. And what concerns the giant anteater is ants.
The giant anteater’s amazing 2-foot-long tongue is covered with tiny, backward-facing spines that are slathered in sticky saliva when the animal feeds. After it’s broken into the nest with its muscular forearms and wicked claws, the anteater will then start snaking its tongue in and out, lapping up any ant it touches.
Miraculously, the giant anteater obtains most of its water from the ants it consumes. Since it depends on ants for not just its food but also its water, it has has devised a way to ensure it always something to eat in its territory. It only feeds for about a minute at each of the nests it visits. Although it can flick its tongue in and out 150 times in that minute, the anteater only consumes about 1% of the ants it needs daily from a single nest. However, because it exercises restraint, the surviving ants have a chance to rebuild the nest and rear more ants. Thus, because the giant anteater is careful not to over-exploit precious resources, its ensured food for life.
Not only does it have a pretty sweet life on the eating end, but the giant anteater has few enemies to fear other than man. Although big cats like puma and jaguar will attack this german-shepard-sized tank of an animal, they will meet with stiff resistance. It looks like Snuffy from Sesame Street, but the giant anteater can easily overpower even the stoutest foe. Punching out with its long front claws, it can deliver devastating wounds to attackers. And if its able to hug the predator with a firm grip, then you can imagine what happens to flesh and bones under claws and muscle designed to rip open trees. But these normally gentle giants prefer to avoid confrontation. Their extremely keen senses of smell and hearing help them to detect both food and danger as they walk awkwardly on their knuckles to prevent damage to their essential front claws.
Giant anteaters are one of the most successful mammals on the South American continent, but they will only continue to thrive if man allows it. They are hunted for their furs and have been driven from much of their former range due to habitat destruction in the process of industrial development. They are now vulnerable to extinction.
