How did they build habitats for all the animals, and what does it take to keep them fed and healthy?

Although the weather is beyond control, bird lovers have been able to combat the other two factors by building man-made habitats and limiting interspecies warfare.

Second possibility is to build habitats like the asteroid civilizations in Sol system.

How did they build habitats for all those animals, and where did they get all the fish?

The've even dismantled the minor planets and smaller moons and built new habitats with them.

Soon, we'll honeycomb the earth, and build habitats along Earth's orbit using raw materials from the asteroid belt.

There's enough matter in the asteroid belt alone to build habitats for half a trillion people.

Some may have chosen to build artificial habitats around other stars, expanding that way until they eventually found other planets to settle.

"No wonder they need to keep building new habitats," Malenfant said.

The team of eight removed the illegal fishing nets to leave the dolphins safe, and also built habitats for the Bald Uakari.