Over the last 4 billion years.
Over the last 4 billion years.
Molecular Clock
evolving independently
molecular clocks
The marching band we know today branches out from drum and bugle corps which began performing field shows around the 1970's. However marching band has been evolving for centuries. Starting with traveling musicians and then evolving into military practice, marcging band has been evolving into what it is today for a very long time.
Humans have been evolving since the stone age. This is the sentence containing the term evolving.
It is Algae group of plants evolving quickly in different directions
Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies.
it's always been evolving
bryophytes
They aren't that old. The Great Lakes started to form about 15,000 years ago when the continental glaciers melted.
Continental cousins are defined by its walls and gates,just like mid-Tudor London though, unlike many of them, London had long been spared a siege.