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  Bees Bees are winged insects closely related to wasps and ants, known for their role in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfamily Apoidea. They are presently considered a clade, called Anthophila. There are over 16,000 known species of bees in seven recognized biological families. to Megachile pluto, the largest species of leafcutter bee, whose females can attain a length of. Bees feed on nectar and pollen, the former primarily as an energy source and the latter primarily for protein and other nutrients. Most pollen is used as food for their larvae. Vertebrate predators of bees include primates and birds such as bee-eaters; insect predators include beewolves and dragonflies. Bee pollination is important both ecologically and commercially, and the decline in wild bees has increased the value of pollination by commercially managed hives of honey bees. The analysis of...

 Snakes  Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes. Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads. To accommodate their narrow bodies, snakes' paired organs appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal. Living snakes are found on every continent except Ant...

Fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Around 99% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with over 95% belonging to the teleost subgrouping. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many became formidable marine predators rather than just the prey of arthropods. Most fish are ectothermic, allo...

 Reptiles  Reptiles, as most commonly defined, are the animals in the class Reptilia, a paraphyletic grouping comprising all sauropsid amniotes except Aves. In addition to the living reptiles, many diverse groups are now extinct, in some cases due to mass extinction events. In particular, the Cretaceous–Paleogene extinction event wiped out the pterosaurs, plesiosaurs, and all non-avian dinosaurs alongside many species of crocodyliforms, and squamates. Modern non-bird reptiles inhabit all the continents except Antarctica. Reptiles are tetrapod vertebrates, creatures that either has four limbs or, like snakes, are descended from four-limbed ancestors. Unlike amphibians, reptiles do not have an aquatic larval stage. Most reptiles are oviparous, although several species of squamates are viviparous, as were some extinct aquatic clades – the fetus develops within the mother, using a placenta rather than contained in an eggshell. As amniotes, reptile eggs are surrounded by...

  Elephants  Elephants are the largest existing land animals. Three living species are currently recognized: the African bush elephant, the African forest elephant, and the Asian elephant. They are an informal grouping within the proboscidean family Elephantidae. Elephantidae is the only surviving family of proboscideans; extinct members include the mastodons. Elephantidae also contains several extinct groups, including mammoths and straight-tusked elephants. African elephants have larger ears and concave backs, whereas Asian elephants have smaller ears and convex or level backs. The distinctive features of all elephants include a long proboscis called a trunk, tusks, large ear flaps, massive legs, and tough but sensitive skin. The trunk is used for breathing, bringing food and water to the mouth, and grasping objects. Tusks, which are derived from the incisor teeth, serve both as weapons and as tools for moving objects and digging. The large ear flaps assist in maintaining a ...

  Bird Birds are a group of warm-blooded vertebrates constituting the class Aves characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which evolved from forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Birds are...

 What nutrition do dogs need?  Dogs are carnivorous, meaning the primary component of their diet should be meat. But they aren’t  obligate carnivores —or only meat-eating. In the wild, dogs survive mainly off of prey animals and some seasonal vegetables. Wild dogs will also occasionally eat fruits. When you’re deciding on your  dog’s diet , it should primarily revolve around these food items. Most dogs need some moderately-fermentable fibers in their diets. Foods that are  high  in fiber are not good for dogs with high energy requirements, and dogs who are young and growing. Corn Quinoa Oatmeal Rice Bread —small amounts of plain bread are ok on occasion OTHER FOODS These other foods are safe to give your pup in moderation as a treat. Peanut butter —be sure the brand you select does not contain xylitol or added sugar Coconut Honey Popcorn                         What human foods are unsafe for dogs ...

Animal Animals are multicellular, eukaryotic organisms withinside the organic state of Animalia. With few exceptions, animals eat natural cloth , breathe oxygen, are capable of flow , can reproduce sexually, and undergo an ontogenetic degree wherein their frame includes a hole sphere of cells, the blastula, all through embryonic improvement . Over 1. five million residing animal species had been described—of which around 1 million are insects— however, it's been predicted there are over 7 million animal species in total. Animals vary in duration from to. They have complicated interactions with every different and their environments, forming complicated meal webs. The medical examination of animals is called zoology. Most residing animal species are in Bilateria, a clade whose participants have a bilaterally symmetric frame plan. The Bilateria encompass the protostomes, containing invertebrates including nematodes, arthropods, and mollusks, and the...