Teleost fishes are the largest and most diverse group of vertebrates. The diversity of teleosts has been attributed to a whole-genome duplication (WGD) event in the ray-finned fish lineage.

Which group of vertebrates is most diverse on land?

What is the most successful and diverse group of terrestrial vertebrates? Birds, members of the class Aves, are the most successful of all terrestrial vertebrates. Twenty-eight orders of living birds with almost 10,000 species are distributed over almost the entire Earth.

Which vertebrate group is the most diverse quizlet?

birds are the most diverse of all terrestrial vertebrates.

What are the most diverse and successful group of living vertebrates?

Amniotes have been the most diverse and successful group of land vertebrates. They attained a global distribution and are found everywhere except in the deepest realms of the ocean.

Which group of vertebrates has the most species?


Complete answer: Mammals have the highest that is, 177 endangered species among vertebrates which represents 3.8% of all the species.

Which group of animals is known for maximum diversity?

phylum Arthropoda

Complete answer: Maximum diversity is found in the phylum Arthropoda. It is the largest animal kingdom with about 9,00,000 species. This phylum is heterogeneous group including a variety of animals differing in structure, habitat and feeding habits.

Which of the following groups has the most species?

In terms of numbers of species, insects certainly represent the largest percentage of the world’s organisms.

What is the most numerous species on Earth?

Among all animals, ants outweigh us in biomass — putting billions and billions of tons up against humans’ fewer than 500 million. And while they’re both tiny and lacking a backbone, krill are the champs among animals worldwide, in terms of numbers, with a population estimated at 500 trillion.

What is the most numerous mammal on Earth?


Mammal. Humans are likely the most numerous species of mammal on Earth at the moment. Having reached some 7 billion in 2011, we outnumber our fellow furries by a wide margin.

Which species has the most population?

Most Populous Animals On Earth

Rank Animal Population
1 Human 7,658,000,000
2 Cows 1,460,000,000
3 Domestic pig 1,000,000,000
4 Domestic sheep 1,000,000,000

Which group of organisms is a population?

A population is defined as a group of organisms of the same species that live in a particular area. There can be more than one population living within any given area. There can be a population of Saguaro Cacti, a population of Cactus Wrens and a population of Bark Scorpion living in the same areas.

What species has the most biomass?

The most successful animal species, in terms of biomass, may well be Antarctic krill, Euphausia superba, with a fresh biomass approaching 500 million tonnes. However, as a group, the small aquatic crustaceans called copepods may form the largest animal biomass on earth.

What animals are there more of than humans?

Scientists believe there are over seven billion humans in the world today. That’s a staggering number, but there are more chickens (over 18 billion) than humans. At least we humans do outnumber cattle (1.4 billion) and sheep (1.1 billion). Those numbers pale in comparison to the insect world, though.

What is the most common animal in the world other than humans?

Insects (Insecta)

An article in The New York Times claimed that the world holds 300 pounds of insects for every pound of humans. Ants have colonised almost every landmass on Earth. Their population is estimated as 1016–1017 (10-100 quadrillion).

What is the most popular animal in the world 2021?

Cats are the most popular animal to keep as a pet in the world today. Here a cute kitten is playing in the garden. Okay, so the felines are number two on our list of most popular animals. But they’re actually the most popular animals in the world when someone’s looking for a pet.

What animal has the least population?

The single rarest animal in the world is the vaquita (Phocoena sinus). This porpoise lives only in the extreme northwestern corner of the Gulf of California in Mexico. Since the population was recorded at 567 in 1997, it has since declined to its current state of 18.

What is cutest animal in the world?

Top 10 Cutest Animals in 2022

  • If you love animals as much as we do, carry on reading to find out more about some of the top voted cutest animals around the globe..
  • Margay.
  • Red Panda.
  • Elephant Shrew.
  • Meerkat.
  • Qoukka.
  • Fennec Fox.
  • Klipspringer.

What was the first animal on Earth?

comb jelly

Earth’s first animal was the ocean-drifting comb jelly, not the simple sponge, according to a new find that has shocked scientists who didn’t imagine the earliest critter could be so complex. The mystery of the first animal denizen of the planet can only be inferred from fossils and by studying related animals today.

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