Birds are not color blind. These animals actually have more advanced color vision than human beings. Birds have photo pigments with sensitivities at four or five peak wavelengths, making them either tetrachromats or pentachromats.
A:The American alligator is a large, heavily armored reptile armed with sharp claws, a strong tail and an enormously powerful set of jaws lined with conical teeth. As apex predators, alligators have no natural enemies but can rely on these features for defense.
A:Some general characteristics of amphibians are that they are cold blooded and spend at least part of their lives in water. Unlike reptiles, they lack claws and their smooth, moist skin is free of scales. Amphibians also lay jelly-covered eggs in a watery medium, whether it's a still pond or the leaves of a water plant like water hyacinth.
A:Also known as the cane toad or giant toad, the marine toad is a land-dwelling toad native to Central and South America. The toad spends its time in the region's subtropical forests and has also been introduced to non-native areas as a means of pest control for crops.
A:The difference between a newt and a salamander is that the newt often has an extra stage in its life cycle. Unlike the salamander, it spends two or three years of its life on land as a red eft. Then it returns to the water, where it spends the rest of its life. Most mature salamanders are terrestrial, though they need a moist environment.
A:Amphibians are cold-blooded vertebrates. They have a backbone, and they maintain their body temperature through external means, such as laying in the sun. Amphibians spend part of their lives on water and part of their lives on land. They have permeable skin, which gases and some molecules penetrate; they also have gills for some portion of their lives.
A:An orange newt may be one of several species of salamanders, including the Eastern newt, Sierra newt, rough-skinned newt or California newt. The Sierra newt can be a brownish-orange color as an adult, with a brighter underside to warn predators. The Eastern newt is an orange color during its juvenile stage only, and rough-skinned newts feature drastic color changes from the ventral and dorsal sections of the body.
A:Some snakes reproduce by laying eggs while other species give birth to live young. How snakes reproduce depends on the species and also the location. In cooler regions of the world, snakes reproduce only in spring and summer, while in warm regions they may reproduce all year long.
A:Rabbits in the wild mate continuously throughout their breeding season, which lasts from February through September. Female rabbits ovulate after they mate and are considered to be constantly fertile.
A:There are a number of behavioral signs that a dog is ready to give birth, including a loss of appetite and restlessness. A pregnant dog will lose interest in food about 24 hours before delivering her puppies, according to PetMD.
A:Most fish breed by spawning, or laying eggs, according to Petalia. Some fish species give birth to live babies. Spawning fish reproduce when males fertilize the eggs after they are laid, while livebearing females are directly fertilized by the males.
A:According to PetMD, phantom pregnancy in dogs, also known as false pregnancy or pseudopregnancy, is most likely caused by hormonal imbalances, especially of progesterone and prolactin. The female dog starts showing pregnancy symptoms or begins lactating within a month or two after her latest heat cycle (estrus) concludes.
A:In the wild, macaws eat seeds, palm nuts and fruit. Pet macaws eat foods rich in beta carotene, such as orange vegetables like sweet potatoes, carrots and peppers, along with green, leafy vegetables like kale. Macaws require diets that support their active lifestyle.
A:The northern cardinal inhabits the southeastern half of the United States and portions of Mexico and Central America. An incredibly adaptable species, the cardinal utilizes a variety of different habitats throughout this range. Cardinals are observed in forests, fields and meadows, as well as in disturbed habitats such as residential areas, municipal parks and urban forests. In fact, cardinals often increase in number when humans develop an area.
A:According to Audubon Magazine, birds flock as a way of avoiding predators, and it allows them to take advantage of the currents in the air in the most efficient manner. Birds also flock as a migration pattern and they may form flocks when foraging for food.
A:Ostriches lack the ability to fly because their wings are far too small to generate sufficient lift for their 200-pound bodies. This is the same reason that their relatives, called the ratites, lack the capacity for flight. To cope with such an apparent competitive disadvantage, these birds have evolved large size and great speed. All ratites live in the Southern Hemisphere, and scientists believe that they share a common ancestor.
A:There are three ways to differentiate between male and female canaries: genital inspection, color appearance and early song. Breeder Sebastian Vallelunga considers inspecting a sexually mature canary to be a virtually foolproof method, the male having a pseudo-penis that protrudes from his vent, while a female has a round dome protruding above the vent. Females ready to breed have an even, torpedo-shaped belly that narrows at one end.
A:According to PawNation, all birds have feathers, lightweight skeletons, beaks, a four-chambered heart and also lay eggs. Birds are warm-blooded vertebrate that have two legs used for walking, hopping, running or perching. Birds have a unique communication system for courtship behavior, community cooperation, chick-parent recognition and territorial defense.
A:About 10-20% of people get bitten by mosquitoes more than others, and it’s probably not because they’re "so sweet," like their grandmothers keep telling them. Genetics are the main reason mosquitoes prefer biting some people over others, but there are other circumstantial factors that come into play.
A:There are more than 5,000 species of ladybugs and they are only poisonous to smaller animals such as birds and lizards. Ladybugs are not considered poisonous to humans. However, people that accidentally consume a ladybug find them foul-tasting.
A:Mosquitoes have four teeth that are sharp and serrated. They are arranged around two tubes. One releases a pain suppressor into the insect's victim, as well as an anticoagulant to keep the blood from clotting. The other tube draws out the blood. Only female mosquitoes feed on blood.
A:Sand fleas, also known as beach flies, sand hoppers or beach hoppers, are terrestrial crustaceans that belong to the Talitridae (Amphipoda) family. These small crustaceans look like tiny shrimp, but they are often mistaken for insects.
A:Native to China, Japan, Korea and Taiwan, the stink bug is believed to have taken refuge on a ship traveling to the United States. While it is unclear exactly when it arrived, according to Penn State College of Agricultural Sciences, the first specimen was observed in Allentown, Pa. in 1998.