What is difference between baby bottle and nipples that are available now?

Baby bottles are containers designed to hold liquid for feeding infants, typically made of plastic or glass, and come in various sizes and shapes. Nipples, on the other hand, are the soft, rubber or silicone attachments that fit onto the top of the bottle, allowing the baby to suck and drink. Nipples vary in flow rates, shapes, and sizes to accommodate different feeding needs and preferences. Together, they create a complete feeding system tailored for infants.