In Florida carpenter ant colonies, distinct worker castes called minors and majors exhibit pronounced differences in social behavior throughout their lives. In a new study published today in Science, a multi-institution team anchored at.
Scientists find clue to why mitochondrial DNA comes only from mom
BREAK DOWN Like most cells, sperm contain energy-producing mitochondria (one organelle and its membrane (red circle) shown, left). Once a sperm fertilizes an egg, the sperm’s mitochondria break down inside that membrane (right).
The Ant Nebula, a cloud of dust and gas whose technical name is resembles an ant when observed using ground-based telescopes. The nebula lies within our galaxy between and light years from Earth. Photo taken by Hubble Telescope.