id	keyword
bioethics02-31079	animals
bioethics02-31079	human
bioethics02-31079	non
bioethics02-31079	darwin
bioethics02-31079	selection
bioethics02-31079	worth
bioethics02-31079	evolution
bioethics02-31079	species
bioethics02-31079	journal
bioethics02-31079	singer
bioethics02-31079	8(1
bioethics02-31079	bioethics