An infant (from the Latin word infans, meaning "unable to speak" or "speechless") is the very young offspring of a human or other mammal. When applied to humans, the term is usually considered synonymous with baby, but the latter is commonly applied to the young of any animal. When a human child learns to walk, the term toddler may be used instead.

The term infant is typically applied to young children between the ages of 1 month and 12 months; however, definitions vary between birth and 3 years of age. A newborn is an infant who is only hours, days, or up to a few weeks old. In medical contexts, newborn or neonate (from Latin, neonatus, newborn) refers to an infant in the first 28 days after birth; the term applies to premature infants, postmature infants, and full term infants. Before birth, the term fetus is used.

Infant is also a legal term referring to any child under the age of legal adulthood.

A newborn's shoulders and hips are wide, the abdomen protrudes slightly, and the arms and legs are relatively long with respect to the rest of their body. In first world nations, the average birth weight of a full-term newborn is approximately 3.2 kg.(7 ½ lbs), and is typically in the range of 2.7–4.6 kg (5.5–10 pounds). The average total body length is 35.6–50.8 cm (14–20 inches), although premature newborns may be much smaller. The Apgar score is a measure of a newborn's transition from the uterus during the first minutes after birth.

Donita Sparks (born April 8, 1963, Chicago, Illinois) is a vocalist, guitarist and song-writer based in Los Angeles, California. In addition to performing with her most recent band Donita Sparks and The Stellar Moments, she is also the co-founder, along with Suzi Gardner, of grunge band L7.

Working with producer Ethan Allen (50 Foot Wave, The 88, Gram Rabbit), Sparks recently released her debut solo record "Transmiticate" in February, 2008, available online. The first single off her new album is titled "Infancy of a Disaster", video for the song is uploaded on YouTube.

Sparks’ original scores can be heard in the recent feature film The Life Of Reilly, starring Charles Nelson Reilly. Her work has also been featured in Natural Born Killers, John Waters’ Serial Mom, the soundtrack to Grand Theft Auto: San Andreas, The New Yorker’s "Out Loud" series CD for the film Brokeback Mountain, and most recently, Rock Band 2.

Sparks and L7 formed Rock for Choice with the Feminist Majority Foundation in 1991, staging numerous concerts featuring some of the biggest bands in the industry benefiting pro-choice organizations.