RECORD: Darwin, C. R. 1845.11.20. I saw 3 hybrids between Penguin-duck & Ægyptian goose. CUL-DAR205.7.110. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 3.2023. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR205.7 contains notes on hybridism, sterility and pigeons.
[110]
Nov. 20/45. Zoolog. Gardens—
I saw 3 hybrids between Penguin-duck & Ægyptian goose— all 3 equally & markedly took of form of penguin— laid many sterile eggs—
Male Ibex & goat have bred several times
Guinea pigeons trod no eggs this first year
Effect of var affecting another species
→ This is against old Breed perishing
[Quoted in Natural selection, p. 458.]
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 9 May, 2023