how did the environment change in the mesozoic age  For much of the Mesozoic Era (the Age of Dinosaurs), parts of Australia would have experienced a colder and wetter climate than we have at present, due largely to the more southern location of the Australian continent

How did this impact animal life  The most well accepted theory for the sudden extinction of dinosaurs is an impact event (otherwise known as the asteroid collision theory). Approximately 65 million years ago, at the end of the Cretaceous period, an increase in iridium levels (a chemical, platinum element) was direct evidence of said impact, which not only is said to have caused the extinction of dinosaurs, but many other groups of animals. Another popular theory, though, is climate change. At the peak of the Mesozoic period, there were no polar ice caps, and sea levels were estimated to be about 100 to 250 meters higher than today.  Science is an observational field of study, and there are several reasons why not all life was obliterated when dinosaurs were, though none that are proven yet. If there was a tsunami, perhaps some escaped extinction because some could fly above it. It may be even be that some of early mammals managed to survive because they had been, of necessity, nocturnal creatures and were better able to adapt to the almost total darkness. It may be that burrowing insects and lizards were able to escape the tsunami and also adapt to darkness. This is called natural selection, and hopefully with time, scientists will be able to answer these questions.

How are dinosaurs and reptiles alike  Only scales with all reptiles, which would include birds which have scaled legs.(not all reptiles lay eggs) Large dinosaurs would have likely produced thermal inertia (the size would have cause them to produce their own body heat). There are also shared skeletal characteristics such as diapsid skulls.( Any of various reptiles having a skull with two pairs of temporal openings and including the lizards, snakes, crocodiles, dinosaurs, and peterosaus).They are alike in that both had scales. They are different in that dinosaurs were warmblooded whereas reptiles are coldblooded, in that it is thought that most, if not all, dinosaurs had feathers over their scales, that the predator-prey ratios of dinosaur top predators were around 100 to 1, whereas the predator prey ratios of the only top lizard predator is 10 to one, that dinosaurs evolved and speciated at far faster rates than lizards, in that dinosaurs tended to fill large predator and herbivore ecological niches whereas the only lizard in the world who is a top predator today is the Komodo dragon, in that dinosaurs had forward facing knees, like mammals today, whereas lizards have side facing knees, and consequentially that lizards have more efficient locomotion while dinosaurs had higher top speeds, and in the amount of energy required to sustain them, among many, many other differences.  Tyrannosaurus comes from the latin word meaning terrible lizard

How are fossils like a time capsule  A time capsule is something that captures a certain characteristic or "thing" from an era. When you ask how a fossil is a time capsule, On it is imprinted something unique from that time period

evolution  2CIS8 2CIS8 2CIS8

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Did dinos really exsist  Yes they did with the fossils in embeded in the earth there is scientific proof that there was dinos.

Are dinos dangerous beasts?