PowerPoint on evolution
Sample Solution
Slide 1
Title Slide
Center
- Title: Tyrannosaurus Rex: King of the Cretaceous
Bottom Left - Your Name Bottom Right
- Affiliation (if applicable)
Speaker Notes Welcome everyone! Today, we’re going on a journey back in time to learn about one of the most iconic predators ever to walk the Earth: Tyrannosaurus Rex. Nicknamed “T-Rex” for short, this fearsome dinosaur ruled the Late Cretaceous period. Over the next few slides, we’ll explore its anatomy, environment, ecological role, and the reasons behind its extinction.
Slide 2
Tyrannosaurus Rex
Binomial Taxonomic Name Tyrannosaurus rex
Speaker Notes Tyrannosaurus Rex belongs to the Theropod clade of dinosaurs, which also includes birds. Its binomial name, Tyrannosaurus rex, means “tyrant lizard king” – a fitting title for this powerful predator.
Full Answer Section
Slide 3
When Did T-Rex Live?
Lived During
- 68 million years ago to 66 million years ago* Geological Age
- Late Cretaceous Period*
Speaker Notes T-Rex lived during the Late Cretaceous period, which lasted from about 100 million years ago to 66 million years ago. This period was the final chapter of the dinosaur era and witnessed the rise of many iconic dinosaur groups, including the giant sauropods and horned ceratopsians.
Slide 4
Where Did T-Rex Live?
Environment
- Terrestrial*
- Lived in floodplains and forests of western North America*
Speaker Notes T-Rex was a terrestrial predator, meaning it lived on land. Fossil evidence suggests that T-Rex inhabited the floodplains and forests of what is now western North America, an area encompassing parts of the United States and Canada. This environment was lush and diverse, supporting a wide variety of plant and animal life.
Slide 5
What Did T-Rex Eat?
Ecological Role
- Apex Predator*
- Likely scavenged as well as hunted*
- May have lived in small groups*
Speaker Notes T-Rex was an apex predator, meaning it sat at the top of the food chain. Its massive jaws and sharp teeth were perfectly adapted for tearing flesh. While T-Rex was likely a skilled hunter, some scientists believe it may have also scavenged on the carcasses of other dinosaurs. There is some debate about whether T-Rex lived solitary lives or in small groups.
Slide 6
The Reign Ends: T-Rex Extinction
Extinction Event
- The Cretaceous–Paleogene extinction event*
- Likely caused by a large asteroid impact*
Speaker Notes The reign of T-Rex and other non-avian dinosaurs came to an abrupt end about 66 million years ago during the Cretaceous–Paleogene extinction event. This mass extinction event wiped out over 75% of all life on Earth, including all non-avian dinosaurs. The cause of the extinction event is believed to be a large asteroid impact that struck the Earth. The impact would have caused a series of devastating environmental effects, including global wildfires, tsunamis, and a long period of darkness caused by dust blocking out the sun. These factors would have made it impossible for most dinosaurs to survive.
Slide 7
T-Rex Legacy
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A Cultural Icon*
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T-Rex remains one of the most popular dinosaurs*
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Featured in movies, books, and toys*
Speaker Notes Despite its extinction millions of years ago, T-Rex continues to capture our imagination. Its powerful physique and fearsome reputation have made it a cultural icon.