Link here to penguin clip on Nature is Amazing (my favorite X account.)
“Penguins are superbly adapted to aquatic life. Their wings have evolved to become flippers, useless for flight in the air. In the water, however, penguins are astonishingly agile. Penguins' swimming looks very similar to birds' flight in the air.[50] Within the smooth plumage a layer of air is preserved, ensuring buoyancy. The air layer also helps insulate the birds in cold waters. On land, penguins use their tails and wings to maintain balance for their upright stance.
“All penguins are countershaded for camouflage – that is, they have black backs and wings with white fronts.[51] A predator looking up from below (such as an orca or a leopard seal) has difficulty distinguishing between a white penguin belly and the reflective water surface. The dark plumage on their backs camouflages them from above.”
—Wikipedia
The animal world has lessons for humans that learned would benefit us all. Animals do not kill their own young, abandon their children or sell them for sex. Animals do not fill and destroy themselves with harmful illicit drugs, or kill, enslave and rape adherents of other religions. Animals do not kill their mates. Animals do not mass murder their own like Stalin, Mao and Castro did. The real barbarians are humans.
How wonderful! They acknowledge each other in passing. similar to a Buddhist bow or a Christian smile. And they all dress appropriately! I imagine their groups are extended families– we can learn so much from this.