Fossils illustrate evolution of life
‘The Story of Life in 25 Fossils’ paints picture of last 3.5 billion years
![Giganotosaurus](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/07/ay_giganotosaurus_free.jpg?fit=860%2C460&ssl=1)
PREHISTORIC BEAST Giganotosaurus (illustrated) would have put T. rex to shame. The gigantic carnivore was roughly a meter longer and up to about 6 metric tons heavier than its fearsome cousin.
Nobu Tamura/Wikimedia Commons (CC BY-SA 3.0)