When snowflakes fall, they are feathery and light. This is a magnified view of a snowflake, note the feathery tips.
A glacier is a large quantity of ice formed from snow that has accumulated and been compacted over a long...
A bird is designed for flight. The combination of light weight, strength and shape, as well as precision control, is...
All flying objects have some things in common. For some things, it is easy to decide if they are flying...
The blue duck/whio is endemic to New Zealand. It has some unique adaptations that allow it to survive in its...
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