Some authors have extended concern for individual well-being further, arguing for the intrinsic value of organisms achieving their own good, whether those organisms are capable of consciousness or not. Paul Taylor’s version of this view (1981 and 1986), which we might call biocentrism, is a deontological example. He argues that each individual living thing in nature — whether it is an animal, a plant, or a micro-organism — is a “teleological-center-of-life” having a good or well-being of its own which can be enhanced or damaged, and that all individuals who are teleological-centers-of life have equal intrinsic value (or what he calls “inherent worth”) which entitles them to moral respect. Furthermore, Taylor maintains that the intrinsic value of wild living things generates a prima facie moral duty on our part to preserve or promote their goods as ends in themselves, and that any practices which treat those beings as mere means and thus display a lack of respect for them are intrinsically wrong. A more recent and biologically detailed defence of the idea that living things have representations and goals and hence have moral worth is found in Agar 2001. Unlike Taylor’s egalitarian and deontological biocentrism, Robin Attfield (1987) argues for a hierarchical view that while all beings having a good of their own have intrinsic value, some of them (e.g., persons) have intrinsic value to a greater extent. Attfield also endorses a form of consequentialism which takes into consideration, and attempts to balance, the many and possibly conflicting goods of different living things (also see Varner 1998 for a more recent defense of biocentric individualism with affinities to both consequentialist and deontological approaches). However, some critics have pointed out that the notion of biological good or well-being is only descriptive not prescriptive (see Williams 1992 and O’Neill 1993, Ch. 2). For instance, the fact that HIV has a good of its own does not mean that we ought to assign any positive moral weight to the realization of that good.

Note that the ethics of animal liberation or animal rights and biocentrism are both individualistic in that their various moral concerns are directed towards individuals only — not ecological wholes such as species, populations, biotic communities, and ecosystems. None of these is sentient, a subject-of-a-life, or a teleological-center-of-life, but the preservation of these collective entities is a major concern for many environmentalists. Moreover, the goals of animal liberationists, such as the reduction of animal suffering and death, may conflict with the goals of environmentalists. For example, the preservation of the integrity of an ecosystem may require the culling of feral animals or of some indigenous populations that threaten to destroy fragile habitats. So there are disputes about whether the ethics of animal liberation is a proper branch of environmental ethics (see Callicott 1980, 1988, Sagoff 1984, Jamieson 1998, Crisp 1998 and Varner 2000).