Spontaneous innovation in tool manufacture and use in a Goffin’s cockatoo

Further reading Benton, M.J. (2001). Biodiversity on land and in the sea. Geol. J. 36, 211–230. Boyce, C.K., and Zwieniecki, M.A. (2012). Leaf fossil record suggests limited influence of atmospheric CO2 on terrestrial productivity prior to angiosperm evolution. Proc. Natl. Acad. Sci. USA 109, 10403–10408. Carrete Vega, G., and Wiens J.J, (2012). Why are there so few fish in the sea? Proc. Roy. Soc. B 279, 2323–2329. Denny, M.W. (1993). Air and Water: The Biology and Physics of Life’s Media (Princeton: Princeton University Press). Friedman, M. (2010). Explosive morphological diversification of spiny-finned teleost fishes in the aftermath of the end-Cretaceous extinction. Proc. Roy. Soc. B 277, 1675–1683. Logares, R., Brate, J., Bertilsson, S., Clasen, J.L., Shalchlian-Tabrizi, K., and Regefors, K. (2009). Infrequent marine-freshwater transitions in the microbial world. Trends Microbiol. 17, 414–422. May, R.M. (1994). Biological diversity: differences between land and sea. Phil. Trans. Roy. Soc. Lond. B 343, 105–111. Mora, C., Tittensor, D.P., Adl, S., Simpson, A.G.B., and Worm, B. (2011). How many species are there on Earth and in the ocean? PLoS Biol. 9 e1001127. Schmidt-Nielsen, K. (1972). Locomotion: energy cost of swimming, flying, and running. Science 177, 222–228. Strathmann, R.R. (1990). Why life histories evolve differently in the sea. Am. Zool. 30, 197–207. Vermeij, G.J., and Dudley, R. (2000). Why are there so few evolutionary transitions between aquatic and terrestrial ecosystems? Biol. J. Linn. Soc. 70, 541–554. Vermeij, G.J. and Grosberg, R.K. (2010). The great divergence: when did diversity on land exceed that in the sea? Integr. Comp. Biol. 50, 675–682.