Week in wildlife – in footage: geese on parade, a radioactive rhino and a lovestruck eagle

A sedated rhinoceros lies unconscious as scientists inject radioactive materials into its horns, in Mokopane, South Africa. The isotopes make it harder for poachers to smuggle the horns by means of airport safety, in addition to rendering the horns unfit for human consumption, with out harming the rhino or the surroundings

{Photograph}: Emmanuel Croset/AFP/Getty Pictures