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Evolution in action

A deadly mantis in a horror movie. An insect of this size would have suffocated in the absence of a mechanism for transporting oxygen. Reynold Brown, Wikimedia

Things people know: why are insects small?

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Over a million species of insects breathe through cilia, so there is a limit to their growth capacity.
An MRI review of various mammalian brains

What do the brains of a dolphin, a human and a kangaroo have in common?

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Researchers from various fields from Tel Aviv University conducted an advanced MRI scan of the brains of approximately 130 species of mammals, with the aim of identifying the level of connectivity within the brain
A single-celled parasite colony feeds inside an animal's cell. From Jumpstory

Things Yorami know: the multicellular conundrum

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Two questions will occupy us in this column, both of which concern the relationship between the whole and its parts. Let's start with Nir's philosophical questioning: in the animal world (fish, reptiles, mammals and birds) we know that all body parts serve the
Sudan, the last wide-lipped (white) rhinoceros. Illustration: depositphotos.com

The last northern rhinoceros

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Dr. Assaf Rosenthal suggests canceling the division into subspecies in order to preserve the genetic load, against the background of the death of Sudan, the last northern (white) rhinoceros
giraffes Seven neck vertebrae. Photo: from JUMPSTORY

Evolution: Why does it seem to have a direction and how will it evolve?

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A goat and a cat seek shade together in Harar, Eastern Ethiopia. From Wikipedia

Things Donors Know: Do Animals Have Pets?

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Tortoises on San Cristóbal Island in the Galapagos Islands. Photo: shutterstock

A brief history of Darwin's trip to the Galapagos Islands: the moment he reached the initial insights about evolution

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A mammoth in the forest. From Jumpstory.com

Clone mammoths to protect the climate?

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Young chimpanzee, photographer: Pierre-Fidenci, Wikimedia

Things donors know: how evolution can create emotions

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The evolution of life on Earth. Illustration: shutterstock

"Chemistry and biology are not separate worlds"

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Indian crow. Photo: shutterstock

Invasive species need a suitable climate and an environment where there are other invasives

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The dogs raise their eyebrows when we talk to them. Now the evolutionary reason for this has been found. The dogs developed new muscles around the eyes to better communicate with humans. Left: Siberian Husky, one of the oldest breeds that did not develop the eyebrow lifting muscle. Photo: Avi Blizovsky

The evolution of puppy dog ​​eyes

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Dolphin pups play in Shark Bay in Australia. Photo: shutterstock

Dolphins form friendships through shared interests just like us

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The first multicellular animals were created from a collection of cells. Illustration: shutterstock

A new fundamental discovery in evolution: the first multicellular animals evolved from a collection of stem cells and not from sponges

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The world champions in evolution. Illustration: Yuval Robichak, for the Weizmann Institute

The world champions in evolution

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A gecko regrows its tail. Photo: shutterstock

Genetic switches have been discovered that control the process of regeneration of the entire body in animals

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The chain blue anbanana after 24 hours in low nitrogen conditions. The cells that have differentiated into nitrogen-fixing cells (heterocysts) shine bright green, and among them - photosynthetic cells

The development of biological patterns, even the simplest ones, requires little noise

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Dickinsonia fossil. Photo: Australian National University (ANU)

A 558-million-year-old fat revealed the earliest animal on Earth

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a molecule. Illustration: shutterstock

Scientists have identified a protein that may have existed at the beginning of life

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Sumit Ayalon. Photo: Dr. David Darom.

A new study found a close relationship between rare cave crabs in Israel and Italy

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Pop up gardens. Illustration: shutterstock

Gene transfer between species is much more common than we thought and has accelerated evolution

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Alina Pushkarb. Photo: Max Apertin

A new family of light-sensing proteins was discovered in the waters of the Sea of ​​Galilee

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Biomass in the world: who has more? Infographic: Yael Shinker, Weizmann Institute Magazine

The Census of Life on Earth: The Trees Still Rule

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How do we really know that there weren't previous industrial civilizations on Earth that rose and fell long before humans appeared? That's the question posed in a scientific thought experiment by astrophysicist Adam Frank of the University of Rochester. Image: University of Rochester / Michael Osadciw

How do we know that humanity established the first intelligent civilization on Earth?

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The announcement of the winners of the Nobel Prize in Medicine for 2017, the discoverers of the molecular mechanism behind the biological clock. Illustration: Nobel Prize Committee

Nobel prize for medicine for the discovery of the molecular mechanisms underlying the biological clock

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