All Toothed Whales have at least one dorsal fin. Both of these types of whales were once widely hunted for a variety of reasons. The Baleen Whales seemed to be hunted on a larger scale. First, they were less dangerous so the risk involved was reduced.Second, their oils were used for cooking, to make clothing, and for other resources.ll Toothed Whales have at least one dorsal fin. Both of these types of whales were once widely hunted for a variety of reasons. The Baleen Whales seemed to be hunted on a larger scale. First, they were less dangerous so the risk involved was reduced.
We need robots to help humanity bear the challenges of today and tomorrow As we have seen in the previous two part of this series, robots will help us cope with the demography burden all countries will face after they complete their demographic transition.
The field of robotics is making great leaps in robot abilities, but these abilities come one at a time. We won't have Rosie from The Jetsons until the various specific tasks are combined into one machine. When that happens, they will take over. But until then, you'll have to choose the purpose of your robot, and hope it can do that specific task well. Here are some of the most recently-unveiled robots and what they can do.