Such a violation of the very nature of science impedes science. When discovered, it is strongly condemned by the scientific community and the agencies that fund research. Another domain of scientific ethics relates to possible harm that could result from scientific experiments.
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 may vary between birth and 1 year of age, or even between birth and 2 years of age. A newborn is an infant who is only hours, days, or up to a few weeks old.
1 SIDS is the most common cause of death in infants from 1 month to 1 year of age, with most deaths occurring between 2 and 4 months.  SIDS is Sudden and Silent, the infant was seemingly healthy; unpredictable and unpreventable.