Physiological protective adaptations include the poisonous properties of the lymph, blood, or skin of inedible species and the excretions from malodorous glands of bedbugs, beetles, skunks, and beavers, which frighten away enemies.
Learn why some CEO's make a $1 salary. Some CEOs of major companies like Facebook and Google only claim an annual salary of one dollar. However, some still receive significant stock options and bonuses adding to their income and existing fortunes.
The average pay package last year was $22.6 million, up from $20.7 million in 2013, according to an analysis of companies' proxy disclosures by executive-compensation data firm Equilar. The average gain in total compensation for the 200 highest-paid U.S. CEOs worked out to 9.1 percent last year.