Here's a fun fact: Crows are some of the smartest animals on the planet. They've been recognized for their extreme intelligence for thousands of years, and now you can witness it! Watch this crow solve a series of water displacement tests in order to earn a treat.
Are all crows this smart, or is this one just a genius? Whatever it is, this particular crow is an expert at puzzles.
In the first puzzle, the crow is presented with two beakers–one filled with water, the other filled with sand, and each containing a treat. Between the two beakers is a pile of pebbles. The crow gets the hang of the puzzle almost instantly.
In the second test, the crow was presented with a beaker of water and several small blocks. Half of the blocks are light, the others are heavy. Again, there's a treat in the beaker. The crow carefully chooses the heavier, denser blocks to raise the water level and retrieve the treat.
The third puzzle is similar to the others–except the crow now has to choose between using solid an hollow objects. This is a little trickier, as it takes slightly more discernment. Do you think the crow can figure it out?
The final test is certainly the most difficult. One of the colored tubes is actually a U-tube, but it's not immediately evident. The crow first has to figure this out, and then deposit the rocks correctly. The crow experiences a few missteps, but trial and error is still certainly an indicator of intelligence.