Don't call these cats "kitties." In fact, don't call them at all. Be very, very quiet. Thanks to the light-enhancing heat-seeking technology of the "starlight" camera, you can glimpse these wild predators as they go about their grisly business. You can encounter a hidden world previously unseen by human eyes by taking in the premiere of "Night of the Lion," Monday 13 September at 9pm on the National Geographic Channel in the UK. Stay tuned for US premiere times, or click the above "Night of the Lion" link to see clips.

Lioness killing Zebra, Serengeti National Park, Ngorongoro Conservation Area, Tanzania, East Africa. Image taken at night using 'Starlight Camera' technology without artificial lighting. Images courtesy Nature Picture Library/Martin Dohrn