Tonight I went to a talk at Seattle Town Hall by E. O. Wilson, one of the most famous evolutionary biologists still alive today. I admit I went for two different reasons. One, Wilson is super famous and also very old, and I wanted a chance to see him speak because another chance might not come. But two, I saw that the topic was how group selection shaped human evolution, and I wanted to see what controversial arguments he would make.
Controversial because Wilson has recently been stirring the pot by trumpeting group selection and saying kin selection has been debunked. I don’t want to rehash the whole event, but Carl Zimmer has a good summary in the New York Times. The basic thing you need to know is that most biologists consider group selection to only occur in very rare and specific circumstances, and that selection usually takes place at the level of the individual or the gene.
But you wouldn’t know that from the talk. Wilson asserted that his controversial Nature paper definitively overturned kin selection theory and that “no one” responded to his critique of kin selection. This set off a red flag in my head, because I definitely remembered reading criticism of the paper at least in the blogosphere. I grabbed my phone and instantly dug up this critique by Jerry Coyne and this one by Richard Dawkins.
But maybe he meant a published critique. So I googled “response to Nowak 2010″ and instantly found a list of papers also published in Nature criticizing his paper:
Abbot, P., Abe, J., Alcock, J., Alizon, S., Alpedrinha, J., Andersson, M., Andre, J., van Baalen, M., Balloux, F., Balshine, S., Barton, N., Beukeboom, L., Biernaskie, J., Bilde, T., Borgia, G., Breed, M., Brown, S., Bshary, R., Buckling, A., Burley, N., Burton-Chellew, M., Cant, M., Chapuisat, M., Charnov, E., Clutton-Brock, T., Cockburn, A., Cole, B., Colegrave, N., Cosmides, L., Couzin, I., Coyne, J., Creel, S., Crespi, B., Curry, R., Dall, S., Day, T., Dickinson, J., Dugatkin, L., Mouden, C., Emlen, S., Evans, J., Ferriere, R., Field, J., Foitzik, S., Foster, K., Foster, W., Fox, C., Gadau, J., Gandon, S., Gardner, A., Gardner, M., Getty, T., Goodisman, M., Grafen, A., Grosberg, R., Grozinger, C., Gouyon, P., Gwynne, D., Harvey, P., Hatchwell, B., Heinze, J., Helantera, H., Helms, K., Hill, K., Jiricny, N., Johnstone, R., Kacelnik, A., Kiers, E., Kokko, H., Komdeur, J., Korb, J., Kronauer, D., Kümmerli, R., Lehmann, L., Linksvayer, T., Lion, S., Lyon, B., Marshall, J., McElreath, R., Michalakis, Y., Michod, R., Mock, D., Monnin, T., Montgomerie, R., Moore, A., Mueller, U., Noë, R., Okasha, S., Pamilo, P., Parker, G., Pedersen, J., Pen, I., Pfennig, D., Queller, D., Rankin, D., Reece, S., Reeve, H., Reuter, M., Roberts, G., Robson, S., Roze, D., Rousset, F., Rueppell, O., Sachs, J., Santorelli, L., Schmid-Hempel, P., Schwarz, M., Scott-Phillips, T., Shellmann-Sherman, J., Sherman, P., Shuker, D., Smith, J., Spagna, J., Strassmann, B., Suarez, A., Sundström, L., Taborsky, M., Taylor, P., Thompson, G., Tooby, J., Tsutsui, N., Tsuji, K., Turillazzi, S., Úbeda, F., Vargo, E., Voelkl, B., Wenseleers, T., West, S., West-Eberhard, M., Westneat, D., Wiernasz, D., Wild, G., Wrangham, R., Young, A., Zeh, D., Zeh, J., & Zink, A. (2011). Inclusive fitness theory and eusocialityNature, 471 (7339) DOI: 10.1038/nature09831
Boomsma, J., Beekman, M., Cornwallis, C., Griffin, A., Holman, L., Hughes, W., Keller, L., Oldroyd, B., & Ratnieks, F. (2011). Only full-sibling families evolved eusociality Nature, 471 (7339) DOI: 10.1038/nature09832
Strassmann, J., Page, R., Robinson, G., & Seeley, T. (2011). Kin selection and eusociality Nature, 471 (7339) DOI:10.1038/nature09833
Ferriere, R., & Michod, R. (2011). Inclusive fitness in evolution Nature, 471 (7339) DOI: 10.1038/nature09834
Herre, E., & Wcislo, W. (2011). In defence of inclusive fitness theory Nature, 471 (7339) DOI:10.1038/nature09835
Yeah, and he said “no one” responded. And it’s not just that Wilson is out of the loop – he came off as being purposefully disingenuous. Not only did he publish a response to the responses (Nowak, M., Tarnita, C., & Wilson, E. (2011). Nowak et al. reply Nature, 471 (7339) DOI: 10.1038/nature09836), but during the Q&A he changed his story and said that people did respond but they were 1. Wrong and 2. In the minority. Even though 1. He never explained why their critiques were incorrect and 2. The vast majority of biologists disagree with his views of group selection and the authors of the critiques weren’t random nobodies; they were very important and accomplished researchers.
I want to give Wilson the benefit of the doubt. Maybe when he said “no one responded” he meant “no one responded in a way that we think invalidates our hypothesis.” But even then, the rest of his talk was incredibly sloppy. He asserted that human eusociality evolved via group selection, but didn’t offer a shred of evidence the whole time. No proposed mechanism, no genetic evidence, nothing. He just waved the Wand of Group Selection and asserted it happened. He asserted that humans first ate cooked meat by scavenging carcasses from wildfires. That’s one hypothesis among many, but he presented it as a known truth and gave no evidence or citation for it. He asserted that eusociality only evolved recently but again gave absolutely no evidence as to why he thought so. I mean, maybe he’s right, but eusociality isn’t exactly something that fossilizes well, so it could have possibly existed in past species. At least put some sort of qualifier or explanation of your reasoning out there.
When someone in the Q&A asked him to explain why people disagree with group selection so much, he didn’t explain the objections or why he thinks kin selection was wrong. He instead stated that his paper was reviewed by a mathematician from Harvard and that it got into the prestigious journal Nature. Therefore it is right, or something. Here’s an alternative hypothesis: Your paper got published in Nature because you’re insanely famous and it was incredibly controversial, which Nature eats up. Nature is more about prestige and sexy topics than good science nowadays. Its retraction rate has increased ten fold in the last ten years when the number of papers published in all journals has only increased by 44%.
Look, I’m not a priori against group selection. Maybe Wilson is right and group selection is applicable in more situations that we currently think. But I’m not going to accept it until he presents compelling evidence, which he utterly failed to do. You can’t just say “Harvard” and “Nature” and leave it at that.
The most irritating thing about the night was that this was a talk given to an educated general public. These people are smart enough to appreciate science and know Wilson is a famous scientist, so they’re going to believe whatever he says. On the way out people were raving about how interesting the talk was. But he presented none of the controversy, no evidence, no reasoning, no citations, no qualifiers…nothing. I understand that a talk to the general public isn’t going to get into extreme detail, but asserting your incredibly controversial ideas as scientific fact is incredibly dangerous. This talk reminded me more of stuff I’ve seen from creationists and climate denialists than scientists.
Honestly, I left feeling bad for him. E. O. Wilson made huge advances to evolutionary biology, sociobiology, and conservation. “Huge advances” is an understatement. But tonight he went outside his expertise and left science behind, and it was kind of embarrassing. I would have loved for him to give an hour long talk about ants instead.