Koalas and Bison Use the Same Rules for Choosing Mates
While natural selection works operates over an individual’s ability to survive, sexual selection operates over an individual’s ability to mate and successfully sire offspring. In other words, sexual selection is a process through which individuals of a given species struggle to be more reproductively successful. It works in two primary ways, first identified by Charles [...]
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Eavesdropping Iguanas Use Mockingbird Calls To Survive
March 15th, 2012 |
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Predator-prey interactions are often viewed as evolutionary arms races; while predators improve their hunting behaviors and their ability to sneak up on their prey, the prey improve upon their abilities to detect and escape from their predators. The problem, of course, is that there is a trade-off between maintaining vigilance – the attention necessary to [...]
Keep reading »Can You Hear Me Now? Human Noise Disrupts Blue Whale Communication
When you dive into the frigid waters of the Pacific Ocean off the coast of southern California, the first thing you notice is the silence. Other than the bitter cold. Your body begins to adapt to the chilly water as blades of slimy kelp brush across your ankles. You spit out the bit of brackish [...]
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![Figure 1. Plot of the locations of the languages in the sample. Dark circles represent languages with ejectives, clear circles represent those without ejectives. Clusters of languages with ejectives are highlighted with white rectangles. For illustrative purposes only. Inset: Lat-long plot of polygons exceeding 1500 m in elevation. Adapted from Figure 4 in [8]. The six major inhabitable areas of high elevation are highlighted via ellipses: (1) North American cordillera (2) Andes (3) Southern African plateau (4) East African rift (5) Caucasus and Javakheti plateau (6) Tibetan plateau and adjacent regions. doi:10.1371/journal.pone.0065275.g001](http://blogs.scientificamerican.com/anthropology-in-practice/wp-content/blogs.dir/8/files/2013/06/journal.pone_.0065275.g0011.png "journal.pone.0065275.g001")
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