I’ve never needed one pair – like Noah’s ark – to go out & multiply across the world. Either walking on land bridges until they crossed the globe. Or left alone to change after being marooned as continents spread far apart.
This week I found science catching up with my point of view!!
Apparently a 20-million-year-old kiwi fossil found in Central Otago had researchers suggesting that the kiwi flew here from Australia long after Gondwana broke apart.
It seems that kiwi & moa flew around the continents and then became flightless after arriving here. Just like their cousins the ostrich in Africa, the rhea South America, the emu in Australia, & the cassowary in PNG.
To go from flight to non-flight can be super-common if you’re a ratite or a rail. Or even if you’re a stout legged moa.
A world-wide change that is very weird, and very possible.