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. 2007 Mar 6;274(1615):1293–1299. doi: 10.1098/rspb.2007.0038

Figure 1.

Figure 1

The mass of saiga antelope (a,b) calves and (c,d) foetuses of different litter compositions. Individual weights are displayed in (a) and (c); total litter weights are displayed in (b) and (d). (a) Calf body mass (kg) of saiga antelope singletons and twins of different sex (predicted mean±s.e.; n=641) and (b) total litter mass (kg) of saiga antelope calves of different litter combinations (predicted mean±s.e.; n=639). (c) Foetus body mass (kg) of saiga antelope singletons and twins of different sex (predicted mean±s.e.; n=719) and (d) total litter mass of saiga antelope foetuses of different litter combinations in utero (predicted mean±s.e.; n=719).