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Squirrels belong to a large family of small or medium-sized rodents called the Sciuridae. The family includes tree squirrels, ground squirrels, chipmunks, marmots (including woodchucks), flying squirrels, and prairie dogs. Squirrels are indigenous to the Americas, Eurasia, and Africa and have been introduced to Australia. Squirrels are first attested in the Eocene, about forty million years ago, and are most closely related to the mountain beaver and to dormice among living species...

An infinity edge pool (also named negative edge, zero edge, disappearing edge or vanishing edge pool) is a swimming or reflecting pool which produces a visual effect of water extending to the horizon, vanishing, or extending to "infinity". They are often seen at fancy or exotic resorts, exclusive estates and in advertisements. The infinity pool design concept is said to have originated from the calcium laden deposits that formed the natural infinity edge pools of Pamukkale, Turkey...

A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

A self-portrait is a representation of an artist, drawn, painted, photographed, or sculpted by the artist. Although self-portraits have been made by artists since the earliest times, it is not until the Early Renaissance in the mid 15th century that artists can be frequently identified depicting themselves as either the main subject, or as important characters in their work...