When put in an enclosed environment together, the dominant grasshopper mouse will kill the other mice of the same sex within 72 hours.There are three main types of burrows that grasshopper mice build: a nest burrow for escaping from the heat of the sun during the day (since they are nocturnal), as well as for resting, an emergency burrow that they can escape and hide from predators in, and a storage burrow they use for keeping food in like seeds that they eat when they are not able to hunt for live prey. When the northern grasshopper mouse emerges from a burrow and “howls at the moon,” the howl is thought to be both a mating call and a hunting call. Almost 90% of the diet of Onychomys leucogaster is carnivorous, making them unique among mice. Grasshopper mice eat scorpions, beetles, grasshoppers, and other insects, as well as other grasshopper mice and other rodents.
DESERT HAIRY SCORPION - HADRURUS ARIZONENSIS
Since they are nocturnal solitary predators, North American hairy scorpions use burrows and sit under rocks to escape the heat of the daytime; they live in these burrows, as well as in caves, during the winter, because they go dormant during this time of year due to the dropping temperatures. They also use these burrows to ambush prey once it is close enough.Although not territorial, North American hairy scorpions will blindly strike at anything that threatens them, when they are provoked. H. arizonensis range from 10 to 18 cm in length, and weigh from 4 to 7 g, making them the largest scorpions in North America. North American hairy scorpions are carnivorous, often preying on organisms of comparable size, such as insects and other invertebrates, lizards and small mammals.Being as they are carnivores, the North American hairy scorpion of will prey on creatures of a similar size to their own. This includes mainly insects and other invertebrates, but occasionally small mammals and lizards as well, although their venom isn’t usually strong enough to take kill these bigger animals.
GIANT CENTIPEDE - SCOLOPENDRA POLYMORPHA
To hunt for food, giant centipedes use maxillipeds, or fangs that carry venom, that are part of their first body segment.Giant centipedes mainly eat crickets, worms, roaches, and other small invertebrates, but occasionally dine on lizards, mice and toads as well.
WESTERN SHOVELNOSE SNAKE - CHIONACTIS OCCIPITALIS
Shovelnose snakes have the ability to submerge themselves and move through the sand. They do this by lowering their head to a point, which clears a sand-free groove under its throat, allowing the snake to breathe. The Shovelnose snake has been known to feed on scorpions. The snake does so by avoiding the claws and stinger of the prey.
TIGER MOTH - BERTHOLDIA TRIGONA
The tiger moth has a distinct talent: emitting a series of ultrasonic clicks, inaudible to humans, that which are used to “jam” the sonar of bats that are hunting these moths.
AMERICAN BISON - BISON BISON
Before females are old enough to mate, single bulls will “tend” to them by following them around and scaring off any competitor males. They do this to try and confine access to a small group of females for mating.Bulls have to be of a decent size to be able to compete with other bulls for available females. Although males reach their sexual maturity around the age of three, they don’t reach this proper size until around six, so they don’t breed until around that age. Females, however, reach their maturity within the first 2 or 3 years of their life.
MUSTANG (AMERICAN FERAL HORSE) - EQUUS CABALLUS
In any one group of horses, there is a social system where several female horses and their foals are claimed by a single dominant male horse.Horses have large ears and eyes, giving them hearing and vision.
HUMBOLDT PENGUIN - SPHENISCUS HUMBOLDTI
The Humboldt Penguin will clean themselves and each other called preening, before their morning feeding. To preen, the penguins gather oil from the preening gland located by their tail, which is then applied to their feathers.Spheniscus humbldti forage for crustaceans and small fish near shores. To kill them, the penguins circle around their prey, attacking them from the side. Then they proceed to swallow their prey head first.
WESTERN DIAMONDBACK RATTLESNAKE - CROTALUS ATROX
Though the western diamondback rattlesnake attacks defensively more often than offensively, because they are easily excitable and aggressive. More US fatalities are attributed to this species than any other snake.The rattle of a Crotalus atrox, which can rattle at 40 to 60 cycles per second, was thought to be used for communication between snakes. Rattlesnakes are actually deaf, however, so that theory was discredited. Instead, these rattles are considered a warning sign to predators.
GREATER ROADRUNNER - GEOCOCCYX CALIFORNIANUS
The greater roadrunner’s diet consists of many things including mice, scorpions, large insects, snakes as well as various plants. Have a varied diet like this helps improve their survival rate in the generally unforgiving southwest environments.The G. californianus can only remain airborne for a few seconds, so they only fly when they need to; they generally prefer to walk or run versus fly, and can get up to running speeds of 17 miles per hour.
COUCH’S SPADEFOOT TOAD - SCAPHIOPUS COUCHII
As nocturnal creatures, Couch’s spadefoot toads are active at night; they also thrive in rainy, wet conditions.The Scaphiopus couchii use their hind feet to dig backwards, creating deep underground burrows to sit in, escaping from their extreme hot and dry native environment.
CHILEAN FLAMINGO - PHOENICOPTERUS CHILENSIS
The ritualized performances of the Chilean flamingo are often initiated by males. These performances look a lot like when they stretch and preen in their daily activity.These performances may occur months before nesting, as well as months after. They are performed in sequences, with each group member following that sequence from another.