Jaida Elcock of SciShow explained the various ways in which identical twins may not actually be entirely identical.

A black cat very calmly queued up for her turn in the cardboard box that her feline sibling was currently using, with no end in sight.

Brazilian freestyle dancer Maikon Alves is able to move and pop his body in such a way that he looks like a robot while he's dancing

Engineer Washiyama Giken combined a synthesizer with a violin, using piezo sensor that was set to string vibration mode.

Musician Christian E. Boeger of moonfunshop built a unique yet very playable electric guitar out of a wooden pallet.

Hats Off Entertainment noted how Peter Sellers turned Inspector Clouseau from a small role into the star of "The Pink Panther" franchise.

Matthew Schreiber explained how he creates holograms, noting how the multi-step process of capturing light waves through lasers is magical to him.

Cats who wake their humans up in the middle of the night or in the very early mornings are not hungry but concerned about safety.

A Ted-Ed lesson explains how some insects are able to survive in the harshest of environments due to evolutionary advantages.

Riyadh Khalaf found an abandoned duck egg and took it home, put it into an incubator and anxiously waited for the egg to hatch.