Vertebrate Species facts

While investigating facts about Vertebrate Species List and Vertebrate Species Number, I found out little known, but curios details like:

A female zebra shark held in captivity in Australia gave birth asexually in 2017. It is only the third documented case of a vertebrate of any species switching its reproductive strategy from sexual to asexual. Sperm storage was ruled out when genetic testing was done on the offspring.

how many vertebrate species are there?

The longest living vertebrate species is the Greenland Shark, reaching sexual maturity at 150 years old. The oldest known individual of the species is almost certainly older than the United States.

What proportion (__/1) of insect species are vertebrate species?

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what vertebrate class has the greatest number of species. Here are 29 of the best facts about Vertebrate Species On Earth and Vertebrate Species Protection I managed to collect.

which of the following vertebrate species is at greatest risk for extinction?

1. The Greenland Shark can live up to 400 years and doesn't become mature until approx. 150 years, making it the vertebrate species with the longest known lifespan.

2. The Greenland Shark is the longest-living of all vertebrate species, with recent findings showing 28 subjects that have lived for at least 272 years

3. Okefenokee Swamp is home to a diverse range of wildlife and birds, reptiles, and amphibians. There are roughly 400 vertebrate species, 60 reptile species, and 200 bird species known to live in the swamp region.

4. The greenland shark has the longest known lifespan of all vertebrate species (300–500 years). The species reaches sexual maturity at 150 years of age. Some of the sharks sampled by researchers had been alive for nearly 400 years and were estimated to be born between 1504 and 1744.

5. Vertebrates (animals with a backbone) amount to less than five percent of all described animal species.

6. The vertebrate with the longest lifespan is actually a shark, the Greenland Shark, with a life expectancy of 392 +- 120 years. The species reaches sexual maturity at the age of 150 years.

7. Amphibian populations have been crashing worldwide since the 1980s due to the spread of a fatal fungus and other anthropogenic factors, making them the vertebrate group with the greatest proportion of species facing extinction

8. There are 120 species of puffer fish and "Their poison is 1,200 times more powerful than cyanide. It’s the second most poisonous vertebrate (having a backbone) in the world next to the poison dart frog."

9. Cichlids have the fastest evolutions of all vertebrates. Single species of cichlid evolved into 500 new species during a period of million years, while an ape evolved into 3 new species after a period of 10 million years.

10. 70 species of vertebrates are capable of giving virgin births (parthenogenesis). Among these animals are turkeys, some lizards, sharks, and snakes. "Natural" reproduction is not limited to male and female interactions, both in captivity and the wild.

What is true about vertebrate species?

You can easily fact check it by examining the linked well-known sources.

There are only 2 or 3 known species of fish capable of eating and digesting wood. Wood consumption, or Xylophagy, is a very rare trait in vertebrates

The ocean sunfish or common mola (Mola mola) is the heaviest known bony fish in the world. The maximum size is up to 10.8 ft in length 14 ft across the fins and up to 5,100 lb in mass. Females of the species can produce more eggs than any other known vertebrate, up to 300,000,000 at a time. - source

Greenland shark has the longest known lifespan of all vertebrate species (estimated between 300–500 years) - source

Spectral bats (aka false vampire bats), a species of bat native to South America that is carnivorous and hunts other vertebrates. They make up less than 1% of all bat species. - source

When is the vertebral column?

Giraffes are the only vertebrate species that don't yawn

How many vertebrate species?

There is only one species of vertebrate that is unique to the UK, the Scottish Crossbill

The World Wildlife Fund‘s annual Living Planet Report from 2014 shows populations of wild vertebrate species declined 52 percent between 1970 and 2010. Freshwater species declined by 76 percent.

Rivers and lakes cover just about 1% of Earth's surface, but are home to 3rd of all vertebrate species worldwide. From 1970-2012, global populations of freshwater megafauna declined by 88%—2x the loss of vertebrate populations on land or in the ocean. Large fish species are particularly affected

Since 1900 477 of the 45,000 (1%) known vertebrates have gone extinct. Estimates vary widely on how many total species in the animal kingdom go extinct every year.

ALL vertebrates have the exact same blind spot, except for a few species of marine life.