What happens to the teeth of seals in Antarctica? This is what the abundance of plankton leads to (3 photos)
Antarctic waters are so rich in plankton that even seals are ready to evolve into whales. This is a crabeater seal, and just below it are beautiful holey teeth.
After what he saw, the dentist quit and went to a monastery.
Yes, the answer to such strange teeth is quite simple - seal teeth slowly but inevitably turn into whalebone. It seems that there is so much krill in the habitats of crabeater seals that the animals decided to abandon their usual diet for pinnipeds. Indeed, why waste energy catching fish and shellfish, if you can simply dive into endless clouds of microscopic crustaceans, and then calmly filter the water
Such a cute chubby guy, why did you come to the dentist?
The method is very simple - you swallow some water, and then filter it through these very holey teeth for tiny crustaceans. Anything that settles on your teeth can be swallowed. Of course, these seals have not completely abandoned their usual methods of feeding, but give them literally a couple more million years, and we will see the first true filter-feeding seal. But whales at one time evolved just like that from small land animals.
It's time to remember about your annual dental examination.
This is how laziness drives progress and evolution :)