10.1.08

The miracles of coevolution

The word symbiosis is perhaps the most misused term in biology. Symbiosis means nothing more than a relationship - organisms living together - and in nature, we typically say that there are three different kinds of symbiotic relationships: Mutualistic, Commensalistic and Parasitic. When the term symbiosis is used, most people use it synonymously with the mutualistic relationship, in which both organisms benefit.



The clownfish and sea anemone both benefit from this living arrangement. The clownfish gains protection from the stingers of the sea anemone and the clownfish eats tiny parasites on the anemone.

Then today, I heard a pretty freaking amazing story on npr ( I know, what did I expect?) discussing the relationship between the whistling thorn and the African elephant.

Turns out that what was thought to be a damaging relationship is actually one that is beneficial. Elephants eat trees, the trees have these stinging ants that attack the elephants so the elephants can't eat the trees. You'd think no elephants would be good for the trees then, right? Not this time.

Seriously, check it out...and marvel in nature.

3 comments:

PHSChemGuy said...

Is there another creature/species anywhere that is more singularily known for one character than the clown fish?

This question prompted because as soon as I saw the photo, I immediately chuckled and said, "there's Nemo."

I feel like such a shill for Disney.

calencoriel said...

and when I named the file as I saved it to the computer I changed it from "clownfish" to "Nemo"

I think a blue wrasse would have also made you think "Dory." I've seen little kids at the zoo and aquarium point at the tropical tanks and look for Nemo and Dory...but you're right, the clownfish is Nemo - no one even remembers Marlin...

And take heart, chemguy - at least you're a shill for Pixar's part of Disney...besides, Finding Nemo is an amazing piece of work. You can quote it at least once a day...

But it still shouldn't be shown in a high school classroom...

andrew said...

I wonder why the ants would leave (or rather why the tree would stop paying them) even if the tree was still under attack by insects...

This wasn't the WV, but it was before I refreshed the page. Seems too easy...

vbnazi