ALT David and a scientist mixing colorful concoctions in beakers under the phrase "imagining strange life in the universe" with doodles.

ALT Illustration showing an astronaut-David exploring Enceladus, Saturn's moon, with hydrothermal vents beneath its icy ocean surface.

ALT Astronaut-David holding a pink balloon reaching toward two bubbles containing worm-like creatures, labeled as living in sulfuric acid on Venus with a no water zone warning.

ALT David wearing an orange cap with a small monkey sitting on top, holding a bunch of bananas, surrounded by floating bananas.

ALT Illustration of an astronaut David floating near a spiral galaxy marked with four red Xs and a question mark, suggesting possible alien locations.

ALT Cartoon shows a person trying to capture a UFO at night with 'ALIENS ???' text above.

ALT David holding a glowing sea turtle surrounded by various animals including an orangutan, penguin, and parrot, with text about saving sea turtles.

ALT Stick figure uses a vacuum with 250 AW suction power at a kissing booth, pulling another figure's face toward the booth.

ALT Stick figure announces a new video titled 'What if all the water on Earth disappeared?' with a scene of a person and dog near an empty shore and a stranded boat.

ALT Cartoon figure with curly blonde hair sitting on a stack of books, holding an open book, with a message saying, 'We will always love you Dolly.'

ALT Illustration showing a person surrounded by mosquitoes attracted to them while others nearby remain unaffected.