This page discusses monotremes, a unique group of mammals including the duckbill platypus and spiny anteaters, which exhibit both mammalian and reptilian traits. They have a cloaca, lay shelled eggs, ...This page discusses monotremes, a unique group of mammals including the duckbill platypus and spiny anteaters, which exhibit both mammalian and reptilian traits. They have a cloaca, lay shelled eggs, and nurse with milk lacking nipples. Recent genomic research has revealed the platypus possesses 18,527 protein-coding genes, showcasing a mix of characteristics from mammals and reptiles, including genes for egg yolk proteins, numerous underwater hunting receptors, and unique venom-producing genes.
