| Parasite wars, viruses, spores
|
| Protozoa, bacteria, microbes galore
|
| They evolve faster
|
| But we can flip their strategy backwards
|
| Before they turn us into eyesores
|
| Parasite wars are ancient, we’ve been entangled
|
| With ‘em since before we had a brain on the tip of our brainstem
|
| Trapped in an arms race with ‘em, runnin' to keep
|
| Pace with ‘em, Red Queen, stuck in one place with the
|
| Microbes, if you’re thinkin' they’re quite gross
|
| Disgust is beneficial for a parasite’s host
|
| Every host-parasite interaction is a mystery
|
| Until you consider its evolutionary history
|
| That’s the enigma code, Alan Turing
|
| Gotta stay out of the water when a guinea worm is burrowing
|
| That burning acid is just to get you to splash in
|
| The river so the bastard’s eggs are broadcasted
|
| Ask Jimmy Carter, it isn’t hard to take hold of
|
| The situation by interrupting host manipulation
|
| Don’t scratch it! |
| Damn, that feeling of itchiness
|
| Was just to get you to attach eggs to your fingertips
|
| Parasites have evolved to manipulate
|
| Our behaviour so that their genes proliferate |
| What you think a sneeze is for, clearing your nostrils?
|
| Nah, that’s a virus takin' over the launch codes
|
| Parasite wars, fighting for lives never high scores
|
| Escalate the arms race with the strike force
|
| The harder we hit them
|
| The more they fight back with resistance
|
| Tryin' to find the right course
|
| Parasite wars, viruses, spores
|
| Protozoa, bacteria, microbes galore
|
| They evolve faster
|
| But we can flip their strategy backwards
|
| Before they turn us into eyesores
|
| Parasite wars, whoa, they’re clever as hell
|
| How’d they get to know us better than we know ourselves?
|
| How does rabies virus know to go for the saliva glands
|
| And attack the brain and make a mammal crazy fighting mad
|
| Foaming at the mouth, ready to bite and pass
|
| On a mouthful of crazy little baby rabies viruses
|
| Damn, that’s a clever little parasite
|
| Plasmodia live in mosquitos in the air in flight
|
| But they’re patient, they never attack a carrier
|
| Benign in mosquitos but in people they’re malaria?
|
| Leavin' you weaker and weaker, weeks and weeks of fever |
| 'Til you’re nothin' but a sack of hot meat,
|
| a mosquito feeder
|
| Ahhh, there’s a method to the madness
|
| Effects are selected when benefits are adaptive
|
| For the pathogens,
|
| that’s why some are deadly serious
|
| And others are mild:
|
| it’s the evolution of virulence
|
| Cholera can spread through vectors like the water systems
|
| We can pass it on even from incapacitated victims
|
| But STDs are different, they only keep working
|
| If they leave you on your feet and flirting
|
| Parasite wars,
|
| fighting for lives never high scores
|
| Escalate the arms race with the strike force
|
| The harder we hit them
|
| The more they fight back with resistance
|
| Tryin' to find the right course
|
| Parasite wars, viruses, spores
|
| Protozoa, bacteria, microbes galore
|
| They evolve faster
|
| But we can flip their strategy backwards
|
| Before they turn us into eyesores
|
| Parasite wars!
|
| We got the pattern figured out
|
| Some can only spread if they keep you walkin' around
|
| Others spread better if you’re stuck in bed in agony
|
| And they don’t give a plasmid about you and your family |
| So all we gotta do is interrupt the vectors
|
| And lower virulence is artificially selected
|
| That’s one way to leave disease decimated
|
| If you can’t beat it, you can try to domesticate it
|
| We’ve already domesticated a few
|
| There’s a hundred trillion microbes inside of you
|
| They’re commensals,
|
| but they can make you crave food
|
| Hijack your vagus nerve and affect your mood
|
| But microbiota isn’t even as deep as it gets
|
| Your DNA is chock full of endogenous retroviruses
|
| Your ancestor got an STD
|
| It got trapped in your genome next to the rest of your genes
|
| And adapted to help your placenta get implanted
|
| So next time you catch a virus maybe you should thank it
|
| Ha! |
| Watch out for the vectors
|
| The double agents and defectors
|
| In the parasite wars, fighting for lives never high scores
|
| Escalate the arms race with the strike force
|
| The harder we hit them
|
| The more they fight back with resistance
|
| Tryin' to find the right course
|
| Parasite wars, viruses, spores
|
| Protozoa, bacteria, microbes galore
|
| They evolve faster
|
| But we can flip their strategy backwards |
| Before they turn us into eyesores |