What are some of the traits present in the newt population described in the article?How might these traits change from individual to individual? (Hint: Do you think the newts are all exactly the same color or size?) Newts hatch in the water, but they spend most of theirlives on land, often hiding under fallen leaves or bark. Atnight, they hunt for insects, tiny fish, and other small prey. When they are ready to mate, rough-skinned newtsreturn to the water, where males and females swimtogether in pairs. The females lay poisonous eggs andattach them to underwater plants. Rough-skinned newts may not appear dangerous: theyare no longer than 20 centimeters (8 inches), with stubbylegs and teeth that look like tiny bumps. However, someof these newts are the most poisonous animals in thePacific Northwest. One rough-skinned newt can haveenough poison in its body to kill dozens of humans!Rough-skinned newts have brown, bumpy skin on theirbacks, with bright orange skin on their bellies. Whenthreatened by predators, newts curl their bodies to showthe orange undersides of their necks and tails. Theorange color warns predators to stay away, and mostpredators do. The only predators that regularly eatrough-skinned newts are common garter snakes.

Predation is a biological interaction where one organism, the predator, kills and eats another…

What are some of the traits present in the newt population described in the article? How might these traits change from individual to individual? (Hint: Do you think the newts are all exactly the same color or size?)

What are some of the traits present in the newt population described in the article? How might these traits change from individual to individual? (Hint: Do you think the newts are all exactly the same color or size?)

Biology: The Unity and Diversity of Life (MindTap Course List)

15th Edition

ISBN:9781337408332

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter25: Animal Evolution-the Chordates

Section: Chapter Questions

Problem 3DAA

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Concept explainers

Ecological adaptations

An ecological adaptation is any morphological, physiological, or behavioral trait of an organism that allows it to survive and reproduce in a habitat or ecosystem. Adaptation is a biological mechanism by which an organism gradually gets more acclimated to its surroundings.

Question

What are some of the traits present in the newt population described in the article?
How might these traits change from individual to individual? (Hint: Do you think the newts are all exactly the same color or size?)

Newts hatch in the water, but they spend most of their
lives on land, often hiding under fallen leaves or bark. At
night, they hunt for insects, tiny fish, and other small prey
. When they are ready to mate, rough-skinned newts
return to the water, where males and females swim
together in pairs. The females lay poisonous eggs and
attach them to underwater plants.

Rough-skinned newts may not appear dangerous: they
are no longer than 20 centimeters (8 inches), with stubby
legs and teeth that look like tiny bumps. However, some
of these newts are the most poisonous animals in the
Pacific Northwest. One rough-skinned newt can have
enough poison in its body to kill dozens of humans!
Rough-skinned newts have brown, bumpy skin on their
backs, with bright orange skin on their bellies. When
threatened by predators, newts curl their bodies to show
the orange undersides of their necks and tails. The
orange color warns predators to stay away, and most
predators do. The only predators that regularly eat
rough-skinned newts are common garter snakes.

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