Are insects related to crustaceans?

While using the P/E ratio as a building block is probably the most popular method to value stocks it is far from the only way. Another common technique to valuing stocks is the price/sales ratio. The P/S ratio is determined by dividing a company's market cap -- the total value of all the companie...

“Ant and human societies are very different and have taken different routes in social evolution,” Traniello shared. “Nevertheless, ants also share with humans important aspects of social life such as group decision-making and division of labor, as well as the production of their...

Serotonin is linked to aggression and is found in the brains of most animals, humans and lobsters include, as expected of creatures with a common ancestor. But serotonin has a completely different effect in arthropods and vertebrates.

In vertebrates lowered levels of serotonin...