Although herons resemble birds in some other families, such as the storks, ibises, spoonbills, and cranes, they differ from these in flying with their necks retracted, not outstretched. They are also one of the bird groups that have powder down. Some members of this group nest colonially in trees, while others, notably the bitterns, use reed beds.
The Egyptian Goose is not really a goose, but is actually a Shelduck. It is a cross between a goose and a duck. It has many duck-like characteristics, but it also has some external goose-like traits. It is the most widespread of all the African waterfowl. These old-world shelducks were domesticated by the ancient Egyptians, who considered them to be sacred. The Romans and the Greeks also kept Egyptian Geese in domestic flocks.
Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization.
