Crawdads in NC

In late July, my husband and I found a bunch of crawdads, including a 3-4 inch monster that is easily the biggest crawdad I've ever seen near the mountains, resting in a small pool along the Roaring River in North Carolina. My toes have been at the receiving end of one too many pinches and I found this thing terrifying, but even though I refused to touch it, we managed to catch it a bucket. Fortunately, my Ohio-raised grandfather fearlessly displayed it for a few photographs before we returned the creature to its kingdom. There were several other crawdads much smaller and, based on coloration, of different species than the big guy. Read more

Why Cnidarians (jellyfish, coral) are awesome

Everybody knows that coral are essential for marine biodiversity. Most people don't know, however, that they are also secretly brutal bad asses. As cnidarians, corals and anemones (anthozoans) are related to the feared jellyfish (medusazoans). The common thread that unites cnidarians is the presence of stinging cells. Read more

Hawaiian volcano rift zones

In Hawaii, volcanoes form over a hot spot, an area where magma rises from the mantle and breaks through the crust. The Pacific plate moves northwest over the hot spot—which remains stationary—eventually carrying the old volcano away from the hotspot. A new volcano then begins to form, with repeated basaltic eruptions building a broad shield volcano. Read more

Huge green and purple moth: luna moth

I've lived in North Carolina for over ten years, but until today I had never seen or heard of a luna moth (Actias luna). I was pleasantly surprised to find a large gorgeous green moth waiting for me on the bricks of my apartment building. It had beautiful light green wings with purple trim, golden fern-like antennae, a fuzzy white body, four lovely eye spots, and long tails. Read more

Types of volcanic eruptions and their dynamics

This post will focus on the processes driving volcanic eruptions (for more details on all things volcano, visit this awesome site by SDSU). The most important factor controlling eruption type is the composition of the lava, which controls how much gas the lava contains. The more viscous the lava, the more gas it traps—and the more gas, the more explosive the eruption.

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Why starfish (Asteroidea) are awesome

Image credit: Brocken Inaglory

Seemingly adorable and innocuous, starfish are actually vicious predators, the mere mention of which would fill you with heart-stopping terror if you were a mollusc or other small marine invertebrate. And actually, considering that several starfish species brandish poisonous spines, people should probably be more afraid of them, too. In fact, starfish is too cute a name (and too inaccurate, as starfish are not "fish" at all); I propose that we start calling them death-stars. Read more