Fish eggs hatch after being pooped
It took a fish egg pooped by a swan to stop an old-age theory from flushing down the drain.
It took a fish egg pooped by a swan to stop an old-age theory from flushing down the drain.
It could dissuade seabirds from nesting and even cause local extinction.
A cuckoo that builds its own nest has the means to keep its eggs from breaking before it is time.
Birds prepare their eggs for the worst, whether the risk comes from predators or just the location of their nests.