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Did T-Rex dinosaurs have feathers?

According to Science Magazine, there is increasing evidence that feathers were common in carnivorous dinosaurs and may have developed earlier than previously thought. Two other types of tyrannosaur, Dilong and Yutyrannus, both have been found with fossil evidence of early feathers. Dilong was distant enough from Tyrannosaurus rex that many paleontologists formerly believed that the T-rex may have lost its feathers. However, the more recently discovered Yutyrannus was close enough both in size and evolution that feathers on the T-rex are fairly likely, according to paleontologist David Hone.

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How do you identify an emerald ash borer?

The emerald ash borer, which belongs to the Agrilus genus, is one of 53 Buprestidae genera found in North America. However, the distinctive shape of the emerald ash borer makes it easy to identify among its relatives. The body shape is elongated and slim, while the prothorax base sits backwards, like a lobe. A typical emerald ash borer has a distinctly emerald metallic coloring, with the elytra having a duller or darker green color. Various amounts of brassy or coppery hues may appear within the overall green color. These colors tend to be more obvious on the pronotum and ventral areas. Some e..

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How do ants mate?

Once the queen mates she will find a location to begin a new colony. She lays her eggs and takes care of the larvae until they develop into pupae. The male ants that mated with the queen will die.Regular ant larvae will grow into wingless females that act as the worker ants. Any larvae given special care may grow into a new queen. Few ants are males as the sole purpose of male ants is to mate with the queen, so there is no need for a large number of male ants.

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What are some tips for rescuing a yorkie?

Animal shelters or rescue groups for small dog breeds often refrain from keeping their dogs in kennels and prefer foster homes instead. This helps volunteers get a head start in basic obedience training and to understand the dog's behavior better. Getting a Yorkie from these groups makes it easier to find the right one. Yorkie-specific rescue centers have many older Yorkies that owners surrender to these facilities. There are also many puppies rescued from bad owners, puppy mills and financially struggling breeders. The dogs in most Yorkie rescues are spayed or neutered and evaluated befo..

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What is the niche of the spider monkey?

Spider monkeys find their food in treetops. Besides eating fruit, they also eat nuts, leaves, bird eggs and spiders. The have also been known to eat flowers, aerial roots, honey, bark, wood and insect larvae. They eat while hanging, climbing or otherwise moving.\nSpider monkeys range over large areas to find sufficient food to feed themselves. They participate in a fission-fusion social system, according to the University of Wisconsin's Primate Info Net. This means they have a large community of individuals that associate with each other. However, this larger group separates into smaller ..

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What do worms eat?

Just like any other creature, worms have foods that they like more than others. Worm farmers find that they love to eat pumpkin and corn cobs. Most worms are also big fans of fruit rinds from cantaloupe and watermelon. Although not their favorites, worms also enjoy eating banana peels, eggs shells, coffee grounds and tea bags. Worm farmers also say that worms can tolerate the digestion of citrus-based foods, garlic and onions. However, when worms are presented with other foods, these types of foods are avoided.\nThere are some foods that are not good for worms to eat. Worm farmers say meats, d..

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How do eagles mate ?

When mature female bald eagles are looking for a mate, they are more docile than normal. Sometimes a bald eagle looking for a mate flies to a great height and dives until almost hitting the ground and then pulls up. When bald eagles are interested in each other, the eagles perch together and groom and stroke one another. Courtship also involves the pair locking talons and going into a free fall. The pair then pull apart before they hit the ground. The actual mating occurs with the male standing on the female's back; the male twists his body so that their cloacas can touch.\nGolden eagle m..

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Where do ferrets originate from?

Domestic ferrets are members of the weasel family and are a different species than the wild black-footed ferret. They are carnivores and preferentially eat small animals such as rodents and rabbits. Some of the earliest mentions of ferrets are of them being used to hunt rabbits. They may also have been used for rodent control before cats became popular.

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How do birds mate?

After an elaborate wooing and courtship process that may include auditory calls, songs and even dances, copulation lasts generally for just a few seconds with the female hunching to help the male balance and moving her tail to the side to expose her cloaca so that it can touch his. It is during this rubbing session that the male sperm is deposited into the female cloaca. The sperm makes its way to the bird's ova where fertilization occurs. The eggs can be laid a few days later or even several months later, depending on the particular type of bird.

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Why do birds migrate?

Birds migrate when food is scarce. Birds that stay in a single area consume much of the food sources in a particular area, forcing them to flock north to places where there is more food. When food dwindles in the fall, they flock back to warmer conditions where food is more abundant.\nBirds normally look for adequate shelter, safety, food and proper breeding grounds when nurturing young. However, adult birds mostly choose such locations for the sake of migrating back to a certain region on their own, and young birds are left to migrate alone when capable.\nLaying eggs in hot temperatures can b..

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