Cyanobacterial neurotoxin evolved billions of years ago

Anabaena circinalis, a cyanobacterium that forms coiled filaments.

On the evening of June 5 in 1990, six fishermen prepared a meal of baked fish, boiled rice, boiled potatoes and boiled blue mussels that they had harvested themselves off the coast of Nantucket. An hour after finishing the meal, their mouths started to tingle. Their face, arms, legs and tongue soon went numb. These [...]

Coral Evolution: From Socialists to Soloists

The solitary and appropriately named sun coral Tubastrea Faulkneri.

Last week’s blog post on the ancestry of the malarial plasmid attracted several insightful comments by Psi Wavefunction. One of the issues discussed was when exactly the malarial ancestor changed his lifestyle from being a coral symbiont to a coral parasite. This week I came across a paper in PNAS that shows that corals themselves [...]

The Ancestry of the Malarial Plasmid Revealed

The malaria parasite, plasmodium falciparum, infecting red blood cells (source National Geographic).

Suppose you’re nearing the end of your life. In a strange twist of fate, you won the lottery. You decide to split the jackpot equally between your two children. While one child uses the money to fund a charity dedicated to fighting poverty, the other one uses it to start the crime syndicate he has [...]

Where the wild things glow

Fluorescent Coral

Brown is not the colour that springs to mind when you hear the word ‘coral’. We are more accustomed to pictures of coral reefs with more aesthetically pleasing colours, like red or purple. That’s not an accurate representation of reality though: a large part of coral species has a more brownish colouring,  due to the [...]