The video discusses six interesting topics.
1. There are more tigers in captivity (5,000-10,000) in the US than in the wild globally (3,900). Most captive tigers are bred for profit, with their body parts sold on the black market.
2. The number of deaths caused by taking selfies is increasing, with over 300 reported deaths. Most victims are between 18 and 23 years old. India has the highest number of selfie-related deaths.
3. In 1975, a physicist, Jack Hetherington, listed his cat, Chester, as a co-author on a research paper to avoid rewriting it for a single author. The deception was eventually discovered, but Hetherington never regretted it.
4. The Hanshin Highway in Japan has a section that runs through a building, known as the "Gate Tower Building." The road is well-made and does not cause any noise or vibrations.
5. Mark Twain was born shortly after Halley's Comet passed in 1835 and died one day after it passed again in 1910. People born in 1986 will likely die around the same time as the comet's next pass.
6. Robert Downey Jr.'s career was revived after meeting his wife, Susan, and being hired by Mel Gibson for the film "The Singing Detective." Downey's journey from addiction to becoming one of the highest-paid actors is inspiring, and he may be able to help his friend Johnny Depp, who is going through a similar situation.
Here are the key facts extracted from the text:
1. There are approximately 5,000 to 10,000 tigers bred in captivity in the United States.
2. There are about 3,900 tigers in the wild globally.
3. The estimate of tigers in captivity in the United States is so large because the government does not have accurate records.
4. Some states have permissive regulations, making it difficult to track the number of tigers in captivity.
5. There are an estimated 8,000 tigers in captivity in Thailand, Vietnam, and China.
6. The main motivation for breeding tigers in captivity is not for conservation, but for exploitation.
7. In 2017, it was estimated that 260 deaths were caused by people taking selfies in the previous 7 years.
8. The number of deaths caused by taking selfies is likely much higher, as not all cases are reported.
9. The most common accidents caused by taking selfies include falls from great heights, drowning, electrocution, and being hit by trains.
10. In 1975, a scientific article was published with a cat, Chester, listed as a co-author.
11. The article was written by Professor Hetherington, who added his cat's name as a co-author as a joke.
12. The editors of the journal did not realize that Chester was a cat until later.
13. Mark Twain was born shortly after Halley's Comet passed in 1835 and died one day after the comet passed again in 1910.
14. Robert Downey Jr. was in a bad situation in 1996, with no studio wanting to work with him due to his addiction and personal problems.
15. Downey's career was revived in 2003 when he met his wife, Suzanne, and was hired by Mel Gibson to star in the film "The Singing Detective".
16. Downey went on to star in the film "Iron Man" and became one of the highest-paid actors in Hollywood.
17. Johnny Depp is currently facing similar challenges to Downey's past struggles, with his image being damaged and his career potentially at risk.