Actually, the modern Blue Whale is still the largest animal that has ever lived, so your question should be "Are animals today smaller than they were in the distant past?" and the answer is "not really." That being said, during the age of mammals, certain representatives were larger than current representatives, such as the mammoths and mastodons for the elephants. However, one must keep in mind that there were many species in the elephant family, and many of them were smaller than today's elephants.
The discussions below seem highly speculative, but may be useful as hypotheses.
i can't give you a straight answer because there can be several things responsible. one is that there's less oxygen in the atmosphere now than in the past-about 1/2 as much. in the past animals could take in more oxygen and thus grow larger, basically. another answer comes from one of several evolution theories. over time, larger and smaller animals faded because larger ones were bigger targets (and of course not many carnivores were subject to this but when their food source dies off-large herbivores, so do they) and smaller ones were not adept at getting food easily. so you have a median-today's average size animals.
There were also horrible recordings of size. Inaccurate measurements had a lot to do with this. The mammoth was not really a "mammoth" but just a bit larger than modern day African elephants. An ecosystem may also not be able to support extremely large herbivores, like certain dinosaurs, and that causes a ripple effect through the entire food chain.
blue whale is not that large compared to the sauropod dinosaurs
Yes, fossils are real. They are the preserved remains or traces of animals, plants, and other organisms from the distant past. Fossils provide valuable information about the history of life on Earth.
In the distant past, the global water usage was significantly lower compared to current levels due to lower population and industrial activities. As populations and industries have grown, water usage has increased substantially over time, leading to a higher overall water demand in the present day.
if plants or animals today need certain conditions to live, then similar plants and animals in the past also required those conditions. :)
The Distant Past setting refers to a historical period in the far past, often thousands or millions of years ago, characterized by primitive human societies, early civilizations, or even prehistoric eras. This setting is popular in fiction and storytelling to explore themes of ancient cultures, lost civilizations, and the evolution of human society.
Mainly that galaxies that are very far away (i.e., from the distant past) look different to galaxies that are near-by (from the more recent past).
Distant Past was created on 2007-11-25.
There were fewer continents in the past due to tectonic activity forming and separating landmasses. It is believed that there were only one or two supercontinents in the distant past, which eventually broke apart into the continents we have today.
False
The Spiderman of a distant past
Yes, flowing water existed on Antartica in the distant past. It is evident since there is a massive block of water in that region.
fewer children are needed as producers.
It's because some industries find Vienna too congested an prefer to relocate to smaller cities.
People know things about the past because or either is written in some kind of text or it have evidence of the time period.
There are encountless animals that live in the present and that lived in the past. It maybe so that scientists have not found the remains of some animals that lived in the past.
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Courtship and marriage are incredibly important to many in the youth population today. However this number is smaller than in past years.