Assembly and disentanglement puzzles have been around for centuries, but they still provide kids and adults with fun while keeping their minds sharp and creative. This is a nice collection of interlocking games
Known as RT-flex96C, this mammoth engine is 44 feet high and 87 feet long and has a horsepower of 109,000, whereas the biggest truck engines produce a fraction of horsepower and are merely 4 feet in height
Mantis shrimp hold the world record for the most complex visual system. They have up to 16 photoreceptors and can see UV, visible and polarised light being the only animals known to detect circularly polarised light.
[📹 MJ Ogata]
Blue Soldier crab from the genus Mictyris
Walking forwards not sideways like most other crabs, in large armies looking for food and shelter,
progressing at speeds of 10 yards per minute (0.34 mph or 0.55 km/h)