Previous Image NGS Picture Id:1481509 PERMITTED USE: This image may be downloaded or is otherwise provided at no charge for one-time use for coverage or promotion of National Geographic Photo Ark. Copying, distribution, archiving, sublicensing, sale, or resale of the image is prohibited. REQUIRED CREDIT AND CAPTION: Any and all image uses must (1) bear the copyright notice, (2) be properly credited to the Joel Sartore/National Geographic Photo Ark (3) be accompanied by a caption which makes reference to National Geographic Photo Ark. (4) include a prominent link to natgeophotoark.org.DEFAULT: Failure to comply with the prohibitions and requirements set forth above will obligate the individual or entity receiving this image to pay a fee determined by National Geographic. (Please note: you may select 5 branded images for online use and 3 images for print/unbranded)© Photo by Joel Sartore/National Geographic Photo Ark A federally threatened koala, Phascolarctos cinereus, with her babies at the Australia Zoo Wildlife Hospital.