UC Berkeley
Found 28 resources for the concept:
Scientists may explore many different hypotheses to explain their observations.
¿De donde vienen todas las especies de Madagascar?
Grade Level(s):
- 13-16
- Advanced
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 30 minutes
Overview
Continuando la celebración del tema de Octubre en el Año de la Ciencia, las ciencias de la tierra y el planeta Tierra, la historia de este mes se centra en cómo la geografía y la geología han moldeado la evolución de la vida en uno de los lugares más singulares de la Tierra. Madagascar, la cuarta isla más grande del mundo, se encuentra en el Océano índico a varios cientos de kilómetros de la costa sureste de áfrica y constituye el hogar de una notable variedad de especies vegetales y animales, incluido el aye aye, la fossa, el camaleón y el árbol baobab...
Aloha, spider style! The work of Rosemary Gillespie
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Research profile
Time: one class period
Overview
This research profile follows Dr. Rosemary Gillespie to Hawaii as she evaluates hypotheses about the evolution of the colorful happy-face spider.
An Antipodal Mystery
Grade Level(s):
- 9-12
- 13-16
Source:
- Herreid, Clyde Freeman
Resource type:
- Classroom activity
Time: 1 to 2 hours, ideally split over multiple class periods
Overview
The discovery of the platypus had the scientific world in an uproar with its mammal-like and bird-like features. How was one to classify the platypus? This case study uses this issue to model the scientific process, with scientists arguing, debating, collecting more evidence, and revising their opinions as new data become available.
Cells within cells: An extraordinary claim with extraordinary evidence
Grade Level(s):
- 13-16
- Advanced
- General
Source:
- Understanding Science
Resource type:
- Article
Time: 30 minutes
Overview
When biologist Lynn Margulis revived the strange-sounding idea that the merging of cells played a prominent role in the evolution of complex life, the scientific community roundly rejected the notion. Today, this idea is accepted as a textbook fact. Learn more about the evidence and social factors that spurred the acceptance of this key aspect of evolutionary theory.
This article is available from the Understanding Science website.
CSI: Olduvai Gorge. The work of Jackson Njau
Grade Level(s):
- 9-12
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Research profile
Time: 40 minutes
Overview
This research profile follows paleoanthropologist Jackson Njau as he investigates ancient predators, like crocodiles and large cats, in an effort to understand how these organisms shaped the evolution of our human ancestors.
Evo in the News: “Error. Greed does not compute.”
Grade Level(s):
- 9-12
- 13-16
- Advanced
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 10 minutes
Overview
This news brief from May 2011 describes how researchers are using tiny robots to study the evolution of altruistic behaviors.
Evo in the News: Grasshoppers change their tune. Is it evolution in action?
Grade Level(s):
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 20 minutes
Overview
This news brief, from December 2012, describes new research into how traffic noise affects insect populations. Several hypotheses to explain the change in grasshoppers' songs are examined.
Evo in the News: Lessons for today in ancient mass extinctions
Grade Level(s):
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 30 minutes
Overview
This news brief, from May 2012, describes new research on the end-Ordovician mass extinction and the lessons we might glean about extinctions going on around us today.
Evo in the news: Omicron and the case of the hidden evolution
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 30 min
Overview
This news brief from January 2022, explores the evolutionary mystery at the heart of the Omicron COVID-19 surge.
Evo in the news: Spreading disease on evolutionary timescales
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 10 minutes
Overview
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.
Evo in the news: The evidence lines up in early mammal evolution
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 15 minutes
Overview
This news brief, from September 2011, describes the discovery of a new mammal species that highlights just how long mammals have been around. Back in the Jurassic, dinosaurs may have dominated terrestrial ecosystems, but they were not alone. Scurrying around their feet and clinging to the trees above them were the fuzzy ancestors of their successors.
Evo in the news: Toxic river means rapid evolution for one fish species
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 10 minutes
Overview
This news brief from March 2011 examines the genetic basis for the evolution of resistance to PCBs in the Hudson River tomcod. Though this is great for the tomcod, what might it mean for other organisms in the ecosystem?
Evo in the news: When it comes to evolution, headlines often get it wrong
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 15 minutes
Overview
Newly discovered fossils are prompting some scientists to consider a minor revision of the relationships shown on the human family tree. This news brief from September 2007 clarifies the occasionally misleading news coverage of the story.
Evo in the news: Where did all of Madagascar’s species come from?
Grade Level(s):
- 13-16
- Advanced
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 30 minutes
Overview
Recently, political unrest in Madagascar has threatened to set back the island's expanding conservation efforts, and criminals have taken advantage of the instability, looting protected forests for rare wood. This news story from October 2009 turns back the clock to consider the biogeographic processes that made Madagascar into a biodiversity hotspot in the first place.
Evo in the news: Where species come from
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 15 minutes
Overview
Lush tropical ecosystems house many times more species than temperate or Arctic regions. This news brief from November 2006 discusses the evolutionary explanation for this diversity trend and reveals why threats to tropical ecosystems may threaten diversity on a global scale.
Exploring KT extinction patterns
Grade Level(s):
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Lab activity
Time: 2-3 hours
Overview
Students will be introduced to a data set about mollusk genera that survived and did not survive the KT extinction event. They will formulate hypotheses regarding extinction patterns and mechanisms and analyze the data for evidence relevant to those hypotheses.
How boogieing birds evolved: The work of Kim Bostwick
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Research profile
Time: 30 minutes
Overview
This research profile follows ornithologist Kim Bostwick through the jungles of Ecuador and the halls of museums as she investigates the evolution of an exotic bird's complex mating dance.
Investigating Common Descent: Formulating Explanations and Models
Grade Level(s):
- 9-12
- 13-16
Source:
- National Academy of Sciences
Resource type:
- Classroom activity
Time: Two class periods
Overview
Students formulate explanations and models that simulate structural and biochemical data as they investigate the misconception that humans evolved from apes.
Island biogeography and evolution: Solving a phylogenetic puzzle using molecular genetics
Grade Level(s):
- 9-12
- 13-16
Source:
- Filson, R.P.
Resource type:
- Lab activity
Time: Two full class periods
Overview
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.
Journal Club Toolkit
Grade Level(s):
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Annotated journal article
Time: Several class periods
Overview
This set of teaching materials aims to help instructors engage their students with the primary literature in evolutionary biology through a "journal club" that can be implemented in a discussion section or smaller class. It includes several helpful tools: annotated articles, a reading guide, additional suggested reading, and tips for students leading a discussion of a journal article.
Natural selection from the gene up: The work of Elizabeth Dahlhoff and Nathan Rank
Grade Level(s):
- 9-12
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Research profile
Time: 30 minutes
Overview
Find out how we investigate evolutionary adaptations by following two scientists and their team as they figure out how the willow leaf beetle survives in different climates.
Omicron y el caso de la evolución escondida
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- UC Museum of Paleontology
Resource type:
- Evo in the News article
Time: 30 min
Overview
Durante el último mes, las cepas del SARS-CoV-2 Omicron han dominado los noticiarios del mundo. Esta variante de rápida transmisión ha llevado a limitar viajes, a cancelar planes de vacaciones, al agotamiento de los kits de pruebas, a la vuelta de los confinamientos, y además a un asombroso número de nuevos casos de COVID-19. Los científicos rápidamente se han puesto a estudiar Omicron, intentando entender qué tan rápido se transmite, qué tanto nos enferma, y si es resistente a los tratamientos, a las vacunas, y a los anticuerpos de infecciones de COVID previas. Necesitamos revisar todas estas cuestiones porque Omicron es muy diferente de otras cepas de coronavirus. Omicron ha acumulado más de 50 nuevas mutaciones en comparación con la cepa que empezó la pandemia. Además Omicron no es un descendiente de la cepa Delta, responsable de la anterior ola de infecciones. De hecho, Omicron es tan diferente de otras variantes que parece que ha estado evolucionando por su cuenta durante muchos meses. Y esto nos conduce a otro misterio que los científicos están tratando de resolver: ¿dónde estaba Omicron escondido mientras toda esta evolución tenía lugar?
Parsimonious explanations for punctuated patterns
Grade Level(s):
- 9-12
- 13-16
- General
Source:
- Evolution: Education and Outreach
Resource type:
- Article
Time: 40 minutes
Overview
Punctuated equilibrium is sometimes erroneously cited as evidence that evolutionary biology still hasn't figured out how evolution works. In fact nothing could be further from the truth. Punctuated equilibrium builds on (not tears down!) established evolutionary theory. Find out how the process works.
This article appears at SpringerLink.
Sexual Selection with Maydianne Andrade
Grade Level(s):
- 9-12
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Classroom activity
Time: 1 hour
Overview
In this article (and the linked assignments and student readings), students examine and interpret data that Maydianne collected to help her figure out why redback spiders evolved a mating behavior in which the male spider is often killed by the female spider. Use the tabs at the bottom of the feature to find related videos, assignments, and lessons to build this example into a lesson sequence on sexual selection.
Stabilization of the fig-pollinator mutualism
Grade Level(s):
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Annotated journal article
Time: 1 hour
Overview
Students read a 2008 paper on the role of parasites in stabilizing the fig-pollinator mutualism alongside an interactive guide that explains each section of the paper and draws the reader's attention to important points in the article.
The causes of mutation with Molly Przeworski and Felix Wu
Grade Level(s):
- 13-16
- Advanced
Source:
- UC Museum of Paleontology
Resource type:
- Classroom activity
Time: 1.5 hours
Overview
In this article (and the linked assignments and student readings), students examine and interpret data that Molly and Felix used to study the causes of mutations that matter most for evolution. Use the tabs at the bottom of the feature to find related videos, assignments, and lessons to build this example into a lesson sequence on mutation.
The Checks Lab
Grade Level(s):
- 9-12
- 13-16
Source:
- ENSI
Resource type:
- Classroom activity
Time: One class period
Overview
Students construct plausible scenarios using bank checks to learn how human values and biases influence observation and interpretation.
Visualizing life on Earth: Data interpretation in evolution
Grade Level(s):
- 9-12
- 13-16
Source:
- UC Museum of Paleontology
Resource type:
- Online activity or lab
Time: 2 hours
Overview
This web-based module leads students through an exploration of the patterns in the diversity of life across planet Earth. Students are scaffolded as they practice data interpretation and scientific reasoning skills.
