New research reveals a major shift in what pressures life used to face.
- For the vast majority of the evolutionary history of ocean life, sudden changes in climate and oceanic chemistry had a huge impact on what life could flourish and what life could not.
- But about 170 million years ago, this changed. The ocean became more stable, and things like predator-prey relationships started to dominate how life evolved.
- The reason for this sudden change? Calcifying plankton came to dominate the oceans.
A comprehensive interdisciplinary paper removes any doubt that orcas don't belong in marine parks and zoos.
- Researchers present a detailed catalogue of the hardships captive orcas face and the damage done to them.
- The study draws parallels between known human chronic stresses and entertainment and research facility conditions.
- The evidence offers a damning response to perplexed apologies offered by proprietors of such parks, aquariums, and zoos when an orca dies.
One often-neglected result of climate change is ocean acidification. If this process continues, we may start to see fewer fish and more jellyfish.
- Since the beginning of the industrial era, humanity has been pumping out unprecedented levels of CO2 into the atmosphere.
- A significant portion of this CO2 is sucked back into the ocean, where it reacts with water to produce carbonic acid.
- Most species fair poorly in the newly acidic ocean. Jellyfish, however, seem to resist ocean acidification more than others.
Can learning about the great white shark help protect us from cancer?
- Scientists have mapped the entire genome of the great white shark.
- The team found genetic adaptations that seem to help the fish preserve and repair its genome, clues that may help us better understand why sharks rarely get cancer.
- The team also identified several gene pathways that might also help explain the fish's extraordinary wound-healing capabilities.
Think you've seen sand? You haven't seen sand.
- Microscopic photography exposes the beauty and strangeness of sand.
- Water wave action produces a startling variety of sand grains.
- That stuff between your toes is a lot more interesting than you might think.