'Solidarity' is a key concept in political movements and usually bears on matters of labour, health and social justice. As such, it is essential in the reproduction and transformation of communities that support their members and protect their interests. It is sometimes overlooked that interspecies solidarity already pertains with a number of domesticated animals, and that people are willing to carry substantial emotional, financial and social burdens to benefit them. There has been even more reluctance to acknowledge wild animals as fellow members of our political communities with whom we might stand in solidarity. The purpose of this paper is to propose that solidaristic relations with certain wild animals are not only possible, but also already exist in some contexts. It explores three different understandings of solidarity, and in probing to what extent they can be applied to wild animals, it identifies some important different roles they can play in 'animal politics', and shows how they can help us reconceive our communities in less anthropocentric terms.