The first new 25 Things at Sb! So grab a cup-o-joe and read on! The extremes of the physical deep-sea environment (temperature, pressure, and lack of light, low food) are more than a challenge for deep-sea organisms. Unfortunately, there is one more-disturbance. In ecology, hypotheses for how biodiversity is maintained generally fall into two categories, . . . → Read More: 25 Things You Should Know About the Deep Sea: #14 The Deep Sea Is Not Stable