Wrong Place, Wrong Time: Woman v Moose
A woman in Anchorage, Alaska just so happened to be in the wrong place at the wrong time. Tracy Hansen was out for a walk with her dog on a normal Alaskan night. Unbeknownst to her a moose was also out for a walk on, what I assume was, a normal Alaskan moose night. This moose saw Tracy, decided that he didn’t like the cut of her jib, and was going to do something about it. It began trotting behind Tracy and her dog Gunnar, who were both unaware of the moose’s presence and intentions. Unfortunately for Tracy, but fortunately for us a family was driving down the street filming the trotting moose. As they realized what was happening they tried to alert the soon to be moose assault victim, but it was too late. The moose jumped and kicked Tracy in the back of the head. Turns out Tracy ended up being ok, got a couple staples in her head and was back out walking her dog shortly after. Video of the run by moose attack is below:
Why Do Giraffes Have Long Necks? Answers To 25 Animal Evolution Questions
About a billion years after the Earth formed, the first signs of life emerged. These were just single-celled microbes, but through billions of years of evolution, scientists think that one of these organisms became a common ancestor to all life, including animals.
Evolution has shaped life ever since it first emerged, progressing for more than 2 billion years before the first animals evolved from their primal ancestors. Since then, the animal kingdom has adapted to fill niches nearly everywhere on the planet, from the sea to subterranean tunnels.
Evolution encompasses the changes species undergo over long time periods. It describes how a species’ gene pool can gradually change over time, thanks to random DNA mutations or sexual reproduction introducing new genetic combinations. Traits can emerge that help individuals survive to reproduce and pass on their genes to future generations.
Nineteenth-century naturalist Charles Darwin used natural selection, or “survival of the fittest,” to describe a major aspect of evolution. According to this theory, individuals with traits better suited to the environment are more likely to survive to pass on their traits to offspring. For example, if there are a few beetles with superior camouflage in a group with other beetles that stand out, the camouflaging beetles will have a higher chance of surviving and reproducing. Over many generations, the species will adapt to their surroundings as more beetles with that camouflage trait make up the population.
Evolution is driven by interactions between genetics and nature, and the Earth’s rock layers preserve a record of this process. By studying fossilized remains, scientists can learn about how modern animals evolved.
But how these animals came to live where they live, look the way they look, and do the things they do is rarely obvious. By consulting scientific research and news articles, Stacker compiled a list of 25 animal evolution questions and answers to explain some of those mysteries, from why giraffes have such long necks to how ants can carry 50 times their body weight. Read on to find out how evolution has led to the diversity of animals on the planet.