Medicine & TechnologyBowfin fish (Amia calva) is an evolutionary enigma representing a unique combination of ancient and modern fish. Charles Darwin even described it as a "living fossil," that has evolved slower than most fishes.
A new study suggests that tetrapods are way older than initial estimates. In addition, tetrapods was discovered to have the fastest aquatic to land evolution which they maintained over millions of years.
Experts estimate that 16% of the carbon in the world's oceans comes from fish poop, fish breath, and other fish excretions. This study is the first to identify the role of fish poop in the carbon flux in oceans.