Final answer:
The statement that no new breeds are currently being developed is false. Selective breeding often leads to the creation of new dog and cow breeds, despite hybrids generally being less fit.
Step-by-step explanation:
The statement 'No new breeds are currently being developed' is false. In the realm of domesticated animals, new breeds are often in development. This is especially true for domestic dogs, where there is significant interest in creating breeds with specific temperaments or physical attributes. Over time, as breeders select for particular traits, significant genetic changes in the offspring can result, often leading to the development of new breeds. This process is an example of selective breeding, which is an anthropogenic (human-influenced) approach to altering the genetic makeup of populations. It is worth noting that hybrids, which can occur between different species or breeds, often face challenges as they may inherit conflicting genetic traits from each parent. However, selective breeding within a species, like creating a new dog or cow breed, does not result in hybrids in the same sense, and thus the development of such breeds can continue.