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- Chordate evolution and the three-phylum system - PMC
Since Charles Darwin proposed the evolution of animals by means of natural selection , the origin and evolution of chordates from common ancestor(s) of deuterostomes have been investigated and discussed for more than 150 years [2–20] Chordates consist of three distinct animal groups: cephalochordates, urochordates (tunicates) and vertebrates
- Centipede | Definition, Types, Facts | Britannica
Centipedes generally remain under stones, bark, and ground litter by day At night they hunt for and capture other small invertebrates At night they hunt for and capture other small invertebrates They move rapidly on from 14 to 177 pairs of legs and have one pair of long, many-jointed antennae and a pair of jawlike, venomous claws just behind
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- McGraw Hill Education
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- Humane World Media Room | Humane World for Animals
About Humane World for Animals For more than 70 years, Humane World for Animals—formerly called Humane Society International and the Humane Society of the United States —has been a leader in the animal protection movement, tackling the root causes of animal cruelty and suffering to drive permanent change and create a better world for all animals around the globe
- Insect taxonomy — Science Learning Hub
Insects are animals and therefore fit into the larger grouping or kingdom called Animalia They have segmented bodies and an exoskeleton, which makes them part of the phylum Arthropoda along with crustaceans Insects are categorised under the class Insecta There are 29 major insect orders but the five most diverse insect orders are:
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