When did the dinosaurs die out?

Dinosaurs lived for an enormously long time - some 150 million years - before they died out about 64 million years ago. During their time on the Earth they dominated the land, while...

Are there any living clues to the ancestors of birds?

A South American bird called the hoatzin may have some of the characteristics of the very early birds. The young hoatzin has claws on the front of its wings like the Archaeopteryx,...

Why is there so much argument about the origin of birds?

The difficulty in explaining the evolution of birds is that there are so few fossils. Bird bones are very fragile and honeycombed, with small air spaces. They crumble away very easily...

Are crocodiles dinosaurs?

Crocodiles are not dinosaurs, although they both evolved from the same type of reptilian ancestors at about the same time. Crocodiles have changed very little over The stocky...

Which giant sauropod dinosaur was well able to defend itself?

Most of the sauropods were too enormous to be successfully attacked by predators. Some of the smaller sauropods developed their own defences. Saltasaurus had body armor, while Shunasaurus...

Where did dinosaurs build nests?

The first dinosaur nests were discovered in the 1920s in the Gobi Desert, proving that Protoceratops was an egg layer and nest builder. However, it was not until the 1980s that...

Killer fish

As fish developed jaws, they were able to hunt other animals. Soon they evolved into large creatures, sometimes with armor to protect them. The most fearsome fish grew to 9 m in length. Dinichthys...

What is migration?

Migration is the mass movement of groups of animals. It is caused by the animals' need to find food, by climatic changes during the year, and by the need to breed. Sometimes migrating...

What is a crustacean?

Crustaceans are aquatic arthropods such as crabs, lobsters and shrimps.They have a very tough, jointed external skeleton and jointed walking legs.Their body is divided into a region...

What are insect larvae and pupae?

Insects such as grasshoppers and locusts emerge from eggs as miniature adults. Other insects go through a complicated development during which they completely change their shape and...

About Fishes

How can fish breathe underwater? Fish are able to breathe underwater because they have special organs called gills. Gills are bars of tissue at the side of the fish's head. They...

What is an amphibian?

From an evolutionary point of view, amphibians are halfway between fish and reptiles.There are 4,400 living species of amphibian. This group includes frogs and toads, newts and salamanders...

What is a reptile?

A reptile is an air-breathing animal with a body structure between that of the amphibians and the birds and mammals. Reptiles are generally scaly and their eggs are fertilized internally. Living...

How are birds different from mammals?

The structure of a bird is very similar to that of a mammal. Birds differ from mammals in that their front limbs are modified as wings, and they possess feathers instead of hair. Birds...

Red Plants

Where the rows of terraced plants can contrast each other red plants look fascinating and charming for Dutch style aqua scape. They can be used to offset many of the greener varieties...

A Saltwater Aquarium

The aquarium sets are very convenient and limited. Most of the people who want to get their first aquarium want to buy the full aquarium sets. This article will discuss the pros and...

Feeding Your Bird

To make sure that you are feeding it a proper diet you have to give him the healthy and the balanced diet which contains all the major ingredients of the nutritious food. You have to...

Types of Fish Food

You have to make sure that you are feeding the high quality diet to your aquarium fish if you want them to live in a long, happy and a healthy life. A proper diet will help to strengthen...

Freshwater Aquarium

Where you have to place your aquarium? Place the aquarium in the right place is very important. Putting the aquarium in the direct sunlight might prove to be dangerous for it as...

Aquarium Plants

Your aquarium looks bare without the decorations or the plants when you are going to set your new aquarium. These additions which you have done in the aquarium also play a vital role...

Aquarium Accessories

There are many accessories of the aquatic pets which played a very important role in the health of your pet. They play a vital role in the survival of the fishes along with their good...

Turtle Aquariums

The habitat of the turtle is the basic necessity of your pet, there are two main types of the habitat which you can provide to the turtles, they may be the indoors or the outdoors....

The Turtles and Salmonella

These are many people who want to keep these pets at their home, but they don't know the basic difference or the link between the Salmonella and turtles. Most of the turtles carry...

7 Care Tips for Gecko

In the world, there are approximately 800 species of gecko, and they are divided into four subcategories that are. • Sphaerodactylinae • Eublepharinae • Diplodactylinae • Gekkoninae...