53:25

More Than Sabre-Tooths: Prehistoric Carnivorans Ancient Humans Encountered

56:57

Expedition (1990) Reviewed

33:16

Extinction Rates and Spec Evo: How "Alien" Can Future Worlds Be?

01:05:20

Exploring The Alternative Biochemistry Iceberg

29:41

Life in the Outer Solar System

20:21

Spec Evo Hothouse Worlds: Will a Warmer Climate Doom the Mammals?

41:48

Alien Planet (2005) Reviewed

51:48

A Saga of Sea Monsters: History of the Macropredator Niche in the World's Oceans

34:35

The Scientific Accuracy of Avatar

01:04:18

The Prokaryotic World: Ecology of the Archean Earth

08:53

Some More Thoughts on the Supposed "Obsolescence" of Tanks

42:25

The Penguin Whale Trope in Spec Evo: Will Seabirds Replace Marine Mammals in the Future?

45:28

Oxygen Utilisation on the Ancient Earth: the Origin of Aerobic Metabolism

03:56

Is There Life In The Subsurface Ocean On Mars?

15:51

My Thoughts on the Graham Hancock Versus Flint Dibble Debate on the JRE

44:05

Colonising And Terraforming Mars

10:35

The Prometheans: A Missed Opportunity

33:31

More than Mammoths: Prehistoric Elephants Ancient Humans Encountered

21:13

Some Thoughts on Space Warfare

11:49

Would Dinosaurs Have Built A Civilisation Had The End-Cretaceous Extinction Not Happened?

32:13

The Weapons of Doom 2016 & Eternal Analysed & Reviewed

56:28

Is There Life On Mars; the Past and Present Habitability of the Red Planet

43:32

Living on the Edge: Microbial Adaptations to Extreme Habitats

52:50

Review of the Future is Wild

54:48

Organic Cosmochemistry: the Building Blocks of Life

12:36

Could the USSR Have Won WWII Without the US & UK?

08:04

Why is Inbreeding so Harmful?

08:28

Could a Mountain Reach Outer Space?

38:06

Origin of Photosynthesis and Respiration

00:57

Where do Ghost Stories Come From?

02:12

How Could Darth Vader Survive Without His Suit?

01:10:20

Microbial Ecophysiology: The Role of the Biosphere in Element Cycling

06:11

Why Birds Evolved Wings: A Remarkable Story of Exaptation

01:05:17

From the First Organism to LUCA: The Evolution of Life's Core Processes

02:06

Underwater Photography at Ricketts Point Marine Sanctuary

01:30

Underwater Footage of Brighton Beach (Melbourne, Australia)

07:29

Did More Oxygen In The Past Allow Animals To Get Larger?

04:07

Evolutionary Psychology of Cats and Dogs

52:05

Eyeball Worlds: Life on a Planet in a Red Dwarf System

07:42

Do Sharks Have to Keep Swimming or Suffocate (and Why Whales Make Sense)?

05:13

Are Tanks Becoming Obsolete?

01:07:47

The Den, Episode 2: Astronomy 2023 Recapped

06:04

How Time Dilation Works

21:44

What Were the First Organisms Like?

04:24

Why You're More Efficient at Energy Production Than the Sun

01:30

Can You Travel Faster Than Light (Without Breaking Reality)?

04:16

Debunking the "Minimum Requirements for Something to Survive" by Long Story Short

14:14

Can a Niche Become Extinct?

38:52

Living Off Thin Air: Microbial Trace Gas Oxidation

17:46

Taxonomy Versus Cladistics (With Cute Animal Pics)

22:20

Sky-Worlds: are Airborne Biospheres Possible?

05:53

How Would a Realistic Energy Sword be Used?

07:16

Early Bioenergetics and the Elephant in the Room

04:55

Does a Greater Exhaust Velocity Really Make a Rocket More "Efficient"?

03:22

Do Hydrothermal Communities Exist Independently of the Sun?

03:00

How Realistic are Space Fighters?

59:20

The Den Episode 1: Alien Life (Full Version)

01:43

Thoughts on the Shadow Biosphere

06:39

Some Thoughts on Resurrecting Extinct Species

12:45

The Anaerobic World: Before the Great Oxygenation Event (Part 5 of 5)