140/200
Earth hides two giant deep blobs that scientists still cannot fully explain.

Deep inside Earth, near the core, scientists have found two gigantic hidden structures often nicknamed the blobs. They are roughly continent-sized, not fully understood, and researchers still debate exactly what they are made of and how they formed.

139/200
Scientists in Argentina discovered a crow-sized dinosaur that hunted tiny animals alongside massive ancient giants.

In Argentina, scientists found Alnashetri, one of the smallest known dinosaurs outside birds. It was about the size of a crow and lighter than a chicken, and it likely hunted tiny animals in a desert landscape while giant dinosaurs roamed the same region.

138/200
Hearing loss can trigger phantom songs as the brain fills gaps.

Hearing loss can make the brain play songs, hymns, or melodies that no one else can hear. Doctors call it musical ear syndrome, and it seems to happen because the brain starts filling silent gaps with stored sound memories.

137/200
The Dark Forest Hypothesis says aliens stay hidden to avoid immediate destruction.

The “Dark Forest Hypothesis” suggests the universe may be like a dark forest at night. In this idea, advanced civilizations stay silent and hidden because revealing their location could be dangerous if more advanced civilizations see them as threats. It is one possible explanation for why we have not found aliens yet: everyone may be hiding to survive.

136/200
In Japan, many adoptees are grown men chosen as heirs.

Japan has long had one of the world’s highest adoption rates, but the twist is that many adoptees are adult men in their 20s and 30s, often adopted to carry on a family name or business.

135/200
Octomom’s 8 babies (2009) are history’s longest-surviving octuplets; doctor lost license.

In 2009, Nadya Suleman got implanted with 12 embryos and gave birth to 8 babies. Guinness calls them the longest surviving octuplets. California’s medical board later revoked her fertility doctor Michael Kamrava’s license.

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A 1994 frozen embryo led to a 2025 baby, Guinness record.

An embryo frozen in 1994 got thawed and implanted about 30 years later, and it still turned into a healthy baby born in July 2025. Guinness World Records recognized it as the longest time a frozen embryo has led to a live birth.

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Gila monster venom research helped inspire GLP-1 drugs like Ozempic.

Researchers found a blood sugar and appetite-regulating protein called exendin-4 in the venomous saliva of the Gila monster, and that discovery helped scientists develop the class of drugs that later led to Ozempic.

132/200
A Swedish king tested coffee on twins, but coffee outlasted him.

In the late 1700s, Sweden’s King Gustav III ordered identical twin prisoners — one to drink 3 pots of coffee a day, the other tea — to prove coffee was deadly. Both twins outlived the king and the supervising doctors; the tea-drinking twin passed away first at 83.

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Lavasa, India’s stalled “Italian” hill city.

Lavasa was a planned private “Italian style” city in India, pitched as a roughly $31 billion project for about 300,000 residents, but heavy debt and environmental stop work orders left big parts unfinished and kind of ghost town.