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Found 25 resources for the concept: Evolutionary trees (i.e., phylogenies or cladograms) portray hypotheses about evolutionary relationships

imageEvolutionary trees and patterns in the history of life
Scientists use many different lines of evidence to reconstruct the evolutionary trees that show how species are related.
This article is located within Evolution 101.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Tutorial

imageLearn about the tree of life
This tutorial on phylogenetics explains the basics of tree-thinking and provides many examples from real organisms.
This resource is available from the Peabody Museum of Natural History

Audience: 9-12

Source: Peabody Museum of Natural History

Resource type: Tutorial

imageEvo in the news: Hotspots for evolution
Why are there so many different species in the tropics? This news brief, from June 2006, suggests why: warmer weather may be linked to a quicker pace for evolution.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Quick bites and quirky adaptations
Trap-jaw ants made headlines with the record-breaking speed of their jaws and a quirky behavior: flinging themselves into the air using the power of their mandibles. This news brief from October 2006 reveals the evolutionary story behind the headlines.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Evolutionary evidence takes the stand
This news brief, from January of 2007, describes the role of phylogenetic evidence in a Libyan court case. Six medical workers have been convicted of injecting children with HIV-tainted blood - but the evolutionary history of the virus paints a different picture.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Happy 200th, Darwin!
This news brief, from February 2009, celebrates Darwin's bicentennial by examining what we've learned about the evolution of the Galapagos finches since Darwin's time.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Tough conservation choices? Ask evolution
The earth is facing a biodiversity crisis. Nearly 50% of animal and plant species could disappear within our lifetime. To stem this rapid loss of biodiversity, we'll need to act quickly — but where should we begin? This news brief, from December 2008, explains how evolutionary history can help us set conservation priorities.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Making sense of ancient hominin DNA
In March 2010 German researchers announced that they had managed to extract DNA from the 40,000 year old fossil bone from a child discovered in a Siberian cave and that it didn't match up to the known genetic sequences of either humans or Neanderthals! This news brief examines the evidence in more detail and considers what that evidence might — or might not — mean about such claims.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageEvo in the news: Spreading disease on evolutionary timescales
Most infectious diseases that we are familiar with are passed from human to human; however, on evolutionary timescales, pathogens don't necessarily respect species boundaries. This news brief from November 2010 examines a recently discovered case of disease swapping among species involving a deadly strain of malaria.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageIsland biogeography and evolution: Solving a phylogenetic puzzle using molecular genetics
Students focus on the evolution of three species of lizards using real data sets — geographical and geological data, then morphology, and finally molecular data — to determine possible phylogenetic explanations.

Audience: 9-12

Source: Filson, R.P.

Resource type: Lab activity

imageUsing trees to understand plants: The work of Chelsea Specht
This research profile follows scientist Chelsea Specht as she pieces together the evolutionary history of tropical plants and their pollinators--and in the process, tries to figure out how to conserve endangered species.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageA name by any other tree
Phylogenetics has affected almost every area of biology - even the most basic one: how we classify organisms. Find out how phylogenetic classification works and what its advantages are.
This article appears at SpringerLink.

Audience: 9-12

Source: Evolution: Education and Outreach

Resource type: Article

imageEvolutionary trees from the tabloids and beyond
This article describes practical applications of phylogenetics, focusing on intriguing cases ripe for deployment in classrooms — like using phylogenetics to investigate crimes.
This article appears at SpringerLink.

Audience: 9-12

Source: Evolution: Education and Outreach

Resource type: Article

imageUsing trees to uproot HIV: The work of Satish Pillai
This research profile follows scientist Satish Pillai as he studies the evolution of HIV within infected individuals. His research uses the tools of phylogenetics to investigate vaccine development and the possibility of curing the disease.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Research profile

imageTree thinking basics
Tree thinking, or phylogenetics, is an important way of understanding evolutionary relationships. Reading trees correctly can pose some challenges. This video introduces the basics of three reading and addresses common problems in tree reading.
This resource is available from the National Evolutionary Synthesis Center

Audience: 9-12

Source: National Evolutionary Synthesis Center

Resource type: Video

imageTree thinking challenges
In the this interactive video, college students guide viewers through problems on phylogenetics and address some of the misconceptions that many students have with the subject.
This resource is available from the National Evolutionary Synthesis Center

Audience: 9-12

Source: National Evolutionary Synthesis Center

Resource type: Video

imageInvestigating a Deep Sea Mystery
In this lab activity, students examine authentic morphological and phylogenetic data of three fish families and then pose and test alternative hypotheses about the fishes' classification.

Audience: 9-12

Source: ETOL

Resource type: Lab activity

imageEvo in the News: Evolutionary history in a tiny package
This news brief, from March 2012, describes the discovery four new species — all miniature chameleons — and explores the concept of island dwarfism.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Image

imageEvo in the News: A new look at dinosaur fossils pushes back the evolution of feathered wings
This news brief, from November 2012, describes what a new dinosaur fossil from North America has to tell us about the evolution of feathers.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

image¿Decisiones de conservación difíciles? Pregúntale a la evolución
¿Si tu casa se incendiara, que es lo que te llevarías cuando estés huyendo? La decisión puede ser difícil entre juguetes de niños, álbumes de fotos y documentos importantes compitiendo por tu atención. Desafortunadamente, nos enfrentamos con una decisión difícil cuando tenemos que definir nuestros esfuerzos de conservación. Las actividades humanas podrían estar desencadenado la sexta extinción masiva de la Tierra...

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

image¡Feliz cumpleaños número 200, Darwin!
Este 12 de febrero se cumplirían 200 años del nacimiento de Charles Darwin, y todo el mundo esta invitado a la fiesta. Numerosos grupos alrededor del mundo — desde niños en las escuelas primarias, hasta museos e iglesias — celebraran la ciencia de la evolución con conferencias públicas, clases, obras teatrales, exhibiciones artísticas y muchísimas galletas con forma de tortugas. 'Evolución en las noticias' de este mes contribuye a la celebración mediante la revisión de un tema cercano y querido por Darwin: los pinzones de Galápagos...

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Evo in the News article

imageSound trees
Students learn how spectrograms represent sound variation and then examine the sounds of owls for traits that might be useful in determining evolutionary relationships. They compare these traits to morphological ones and test their hypotheses.

Audience: 9-12

Source: Cornell Lab of Ornithology

Resource type: Lab activity

imageTeaching the Process of Molecular Phylogeny and Systematics: A Multi-Part Inquiry-Based Exercise
Students explore molecular data from Homo sapiens and four related primates and develop hypotheses regarding the ancestry of these five species by analyzing DNA sequences, protein sequences, and chromosomal maps.

Audience: 9-12

Source: Lents, Nathan, et al

Resource type: Lab activity

imageA fisheye view of the tree of life
This interactive phylogeny of the ray-finned fishes lets users dynamically explore the evolution of fish traits, as well as read stories about the evolution of unusual characteristics such as bioluminescence and venom.

Audience: 9-12

Source: UC Museum of Paleontology

Resource type: Interactive

imageTree of Life
This interactive web resource allows you to follow any branch on the tree of life to find out how scientists hypothesize all the species on Earth (plus some extinct lineages) are related to one another.
This resource appears at the Tree of Life website.

Audience: 9-12

Source: Tree of Life

Resource type: Interactive

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