For animals that prefer murky waters, camera backpacks sometimes require headlights made of light-emitting diodes.
The robots, which cost about $3,000 apiece, will each be equipped with underwater and above-water cameras and a multitude of sensors to measure the water's pH, oxygen, temperature, air quality and salinity, uploading new data and photos to a Web site every few seconds.
When the girl jumps into the water the camera catches it all by reflection.
As I emerged dripping from the water, a camera crew approached, filming footage for a US cable TV channel.
We compared the influence of a water source camera trap survey design on the detection probabilities of a guild of seven carnivore species, in comparison detection probabilities from camera traps along roads, on arid, commercial farmland in southern Namibia.
The game is full of nice touches: when the prince bends down to get a drink of health-restoring water, the camera zooms in on his face as a sitar-like instrument is strummed, giving the small gesture a touch of the magical.
So they purchased lemmings from some Canadian kids for 25 cents apiece, shipped them to the filming location and forced them to leap into the water, with camera angles artfully concealing the filmmakers' interference.
Sloppier ground-level angles are offered by the ever-popular water-bowl camera; the puppy cam, to watch the action from the players' perspective; and the kiss cam.
Actually, the most popular part of "Puppy Bowl" may be the water-bowl camera ("the greatest technical innovation since the yellow first-down line," Mr. Chandler said).
