Hummingbird hawk-moth

src: upload.wikimedia.org The hummingbird hawk-moth ( Macroglossum stellatarum ) is a species of moth. Video Hummingbird hawk-mot...

Pet

src: www.libertymutual.com A pet or companion animal is an animal kept primarily for a person's company, protection, or entertainment ...

Head-mounted display

src: i.ytimg.com A head-mounted display (or helmet-mounted display , for aviation applications), both abbreviated HMD , is a display device...

Bird vocalization

src: academy.allaboutbirds.org Bird vocalization includes both bird calls and bird songs . In non-technical use, bird songs are the bird s...