Tag Archive for 'Tree of life'

Time-calibrated phylogenetic tree for angiosperms based on 353 nuclear genes; all 64 orders, all 416 families and 58% (7,923) of genera are represented. Image credit: Zuntini et al., doi: 10.1038/s41586-024-07324-0.

Researchers Construct New Family Tree for Flowering Plants

Apr 26, 2024 by News Staff

An international team of scientists has created the tree of life for almost 8,000 (about 60%) genera of flowering plants (angiosperms). This achievement...

Simple schematic representation of the mutilation of the Tree of life because of generic extinctions and extinction risks. The bottom half of the tree depicted as dead branches shows examples of the extinct genera, and the upper half shows examples of genera at risk of extinction. Extinct genera: (I) lower row left - Delcourt’s giant gecko (Hoplodactylus, left), of which the only specimens known were found in a museum without a label, but probably they were found in New Zealand; and saddle-backed Rodrigues giant tortoise (Cylindraspis, right) from Rodrigues Island in the Indian Ocean. Lower row right - Yunnan Lake newt (Cynops, left) from China; and the gastric brooding frogs (Rheobatrachus, right) from rainforests in Queensland, Australia. (II) Second bottom-up row left - thylacine (Thylacinus, left), the largest carnivorous marsupial, last known from Tasmania; and Yangtze River dolphin or baijii (Lipotes, right) from China, one of very few freshwater dolphins. Second bottom-up row right - elephant birds (Aepyornis, left), the largest birds surviving to modern times, represent also both an extinct genus and family (Aepyornithidae) endemic to Madagascar; and Moho birds (genus Moho, right) represent also both an extinct genus and family (Mohidae) from Hawaii. Endangered genera: (III) Third bottom-up row left - King cobra (Ophiophagus, left) from Asia; and gavial (Gavialis, right) from India and Nepal. Third bottom-up row right - Alpine newt (Ichthyosaura, left) from Europe; and Mahogany frog (Abavorana, right) from the Malay Peninsula. (IV) Upper row left: volcano rabbit (Romerolagus, left) known from few mountains close to Mexico City, and elephant (Loxodonta, right) from Africa. Upper row right - ‘i’iwi or scarlet honeycreeper (Drepanis, left) from Hawaii; and kakapo (Strigops, right) a flightless parrot from New Zealand. Image credit: Marco Antonio Pineda.

Study: Human-Driven Sixth Mass Extinction is Eliminating Entire Animal Genera

Sep 18, 2023 by News Staff

Mass extinctions during the past 500 million years rapidly removed branches from the tree of life and required millions of years for evolution to generate...

Choanate vertebrates’ acoustic communication ancestral state reconstruction analysis: tree includes 1,800 choanatian species assigned either with the character presence or absence of acoustic communication; pie charts at ancestral nodes indicate likelihood of each character state; colors in the spectrograms represent sound intensity, with warm colors representing high intensity and cold colors (i.e. blue) representing low intensity or absence of sounds. Image credit: Jorgewich-Cohen et al., doi: 10.1038/s41467-022-33741-8.

Acoustic Communication May Have Appeared as Early as 407 Million Years Ago

Oct 26, 2022 by Sergio Prostak

Acoustic communication, broadly distributed among vertebrates, plays a fundamental role in parental care, mate attraction and various other behaviors....

LifeGate 2022 combines up-to-date phylogenetic knowledge with a graphical display of the richness and aesthetics of life on Earth. Image credit: Martin Freiberg / Leipzig University.

New Interactive Phylogenetic Map Shows Full Diversity of Life on Earth

Jul 29, 2022 by News Staff

LifeGate 2022, created by Leipzig University researcher Martin Freiberg, is an attempt to arrange all known species (about 2.6 million) in an interactive...

Life may have begun shortly after Earth formed 4.54 billion years ago. Image credit: Hadeano.

Life on Earth Arose Multiple Times and in Multiple Ways, New Theory Says

Aug 17, 2021 by News Staff

In a new theoretical paper, researchers from the Santa Fe Institute provide a new perspective on the origin of life by arguing that life has emerged many...

An artistic conception of the early Earth. Image credit: Simone Marchi / NASA.

Common Ancestor of All Cellular Life on Earth Emerged Very Early in Planet’s History

Aug 23, 2018 by News Staff

New research from the Universities of Bristol and Bath suggests life originated on our planet a lot earlier than previously thought. An artistic conception...

A 2016 representation of the tree of life. Image credit: Laura A. Hug et al, doi: 10.1038/nmicrobiol.2016.48.

SYMPHY: Researchers Propose New ‘Tree of Life’ Framework that Incorporates Symbiomes

Jun 13, 2017 by News Staff

In 1859, Charles Darwin included a novel tree of life in his book ‘On the Origin of Species.’ Now, a Rutgers University-led research team wants to...

This family tree of Earth’s lifeforms is considered a first draft of the 3.5-billion-year history of how life evolved and diverged. Colors represent proportion of lineages represented in databases of the National Center for Biotechnology Information. Image credit: Cody E. Hinchliff et al, doi: 10.1073/pnas.1423041112.

Researchers Create Tree of Life for More Than Two Million Species

Sep 21, 2015 by News Staff

An international team of scientists from eleven institutions in the U.S. has produced a first draft of the ‘tree of life’ for 2.34 million species...