From the BBC’s Ocean Giants documentary, watch this incredible clip to hear the extraordinary and mysterious song of the Humpback Whale. Why do they sing (or hum)? Does it serve a purpose? Are they making music for pleasure? Are they talking?
BionicKangaroo is able to realistically emulate the jumping behavior of real kangaroos, which means that it can efficiently recover energy from one jump to help it make another jump. Without this capability, kangaroos (real ones) would get very very tired very very quickly, but by using their tendons like elastic springs, the animals can bound at high speeds efficiently for substantial periods of time.
BionicKangaroo emulates this with an actual elastic spring, which partially “charges” the legs on landing.
Bonus fun: wear the corresponding armband and you can control the kangaroo using gestures. Mmmmmmm, biomechanics.
How are police horses chosen to become the highly trained and trusted steeds that they are? Via BBC Earth, watch the police horse testing and training process as conducted by the San Francisco mounted police unit, where only 10% of the horses that begin the program are found to be right for the job.
“I have a whole freezer full of harvested feathers, of different types and sizes, and I wanted to choose the right ones for this animal. I picked feathers from a male the same age as this bird and they fit perfectly…”
She then whittled small sticks of bamboo so that one end poked into the shaft of the new feather and the other into the shaft still attached to the bird (where the burned feathers had been carefully sheared off).
With a little drop of quick-drying epoxy, she cemented each new feather into place. “If attached right, the new feathers are just as effective as the old ones” in letting a bird do all of its aerial maneuvers, she said….