Chick with genetic defect

[u/Significant_Snow_718]

[u/Away-Wave-2044]

This one has….evolved

[u/_who-the-fuck-knows_ → u/Away-Wave-2044]

This is kinda how evolution works. Random mutations in genes. The good mutations carry on through breeding.

[u/Ralgharrr → u/_who-the-fuck-knows_]

Not every unusual trait is necessarily the result of a new mutation. A four-legged chicken could result from a recessive allele that has been preserved in the population, only expressing itself when inherited from both parents. However, many cases of extra limbs in animals are due to developmental anomalies rather than strictly genetic causes.

[u/allisango14 → u/Ralgharrr]

Ive seen these before!! Some cases are double yolk twins fusing too!! (I haven't had the privilege of encountering one... but still a pretty cool thing!)