Dino Tail - Columns

What is a Trace Fossil?

2026-06-03

'Trace fossils' are the preserved evidence of the activities of past organisms, such as footprints and burrows. They are important clues that tell us about the ecology and environment of the time, which cannot be understood from body fossils such as bones. We will explain the types of trace fossils and the latest Earth history revealed by them in an easy-to-understand manner.

[Verification] Tyrannosaurus vs Allosaurus: Which is stronger?

2026-01-03

Tyrannosaurus and Allosaurus are often discussed as the 'strongest dinosaurs'. If these two major carnivorous dinosaurs, which lived in different times and places, were to fight, which one would be stronger? We thoroughly compare their strength based on the latest findings in skeletal morphology, musculoskeletal biomechanics, and neuroanatomy.

A Visit to the Fukui Prefectural Dinosaur Museum, Japan in 2024

2024-09-23

A 5-day, 4-night trip to the Fukui Prefectural Dinosaur Museum. This report covers the newly renovated museum interior and the nearby fossil excavation experience.

Exhibit at the National Museum of Nature and Science

A Visit to the National Museum of Nature and Science - Reservations Required

2020-07-23

The National Museum of Nature and Science has reopened amidst the pandemic. A detailed report on the museum's new reservation system and safety measures.

History of Dinosaur Discovery and Research

2020-03-07

Tracing the progress of dinosaur research from Richard Owen's proposal of "Dinosauria" to the present day.

The Five Mass Extinctions in Earth's History

2014-09-21

An examination of the past mass extinctions known as the "Big Five" and a discussion on the sixth mass extinction, which is said to be ongoing.

The Crisis of the Tyrannosaurus Name Disappearing

2014-08-30

An explanation of the incident where the famous genus name "Tyrannosaurus" was at risk of disappearing due to naming conventions.