Lazarus taxon

Phylum Micrognathozoa: Tiniest Invertebrates on Earth

The members of phylum Micrognathozoa are very tiny, around a tenth of a millimeter. And in fact, this is the only monotypic animal phylum, meaning the only one containing only one species, L. maerski. This species was discovered in 1994, and no male organisms in this species have ever been

From playlist Zoology

Phylum Rotifera Part 2: Four Major Clades

Now that we understand the general characteristics of phylum Rotifera, let's dig into some of the clades within this phylum. These would be Bdelloidea, Seisonidea, Monogononta, Acanthocephala. Their relationships and phylogeny are still not firmly known, but let's talk about what we do kno

From playlist Zoology

Phylum Platyhelminthes Part 1: General Characteristics

The first phylum within Spiralia that we will investigate is Platyhelminthes. These are the so-called flatworms. What are their characteristics? What are the clades within this phylum? Let's set ourselves up for a thorough investigation! Script by Ryan Helcoski Watch the whole Zoology pl

From playlist Zoology

What Is A Species? | Evolution | Biology | FuseSchool

Carl Linnaeus classified all living things into groups based upon their physical features. His system placed organisms with the most similar characteristics together in a group he called the “species”. A species is defined as all organisms that are able to breed with one another, and mos

From playlist BIOLOGY: Evolution

Phylum Gnathostomulida: Jaw Worms

It's now time to dig into the clade Gnathifera, which contains three phyla. The first of these is Gnathostomulida, which houses the jaw worms. These organisms, as you might guess, have impressive microscopic jaws. Because they are interstitial animals they were not discovered until the 20t

From playlist Zoology

Paleo Profile - Sea Scorpions

Today we examine the amazingly bizarre group of prehistoric arthropods, the Eurypterids or sea scorpions of the Paleozoic. We answer questions like: Where they really scorpions? How large did they get? And what are they exactly? A lot of illustrations used in the video belong to Satoshi K

From playlist Paleontology Videos

Phylum Chaetognatha: Arrow Worms

The organisms in phylum Chaetognatha are known as arrow-worms, or bristle-jaws. They have a very interesting anatomy and eating habits. Their phylogeny is tricky and still in flux, so let's learn about what we know right now! Script by Ryan Helcoski and Dr. Carsten H G Müller: https://www

From playlist Zoology

Loch Ness Outdone: Rediscovery of the Coelacanth

In 1938, a fisherman in South Africa caught a fish thought to have been extinct for more than fifty million years. The amazing discovery shocked and thrilled the world, challenged our understanding of species and evolution, and gave new meaning to the term "forgotten history." The History

From playlist History and Animals

Ghost Lineages

Dr. Brandon Peecook thought he had made a major paleontological discovery that was going to alter decades of prior research in the field. Then, right before he was about to present his findings, he got a phone call that changed everything. This episode is funded in part by the National Sc

From playlist The Brain Scoop: Recent Uploads

Cladistics Part 2: Monophyly, Paraphyly, and Polyphyly

Now that we know how to construct cladograms, we have to learn some new terminology. These are the terms monophyly, paraphyly, and polyphyly, and they help us distinguish between any old taxon and true clades. Let's learn more about cladistics now! Script by Ryan Helcoski Watch the whole

From playlist Zoology

Introduction to Fungal Phylogeny and Taxonomy

There are a lot of species in the fungi kingdom. How many? Over five million! That's a lot of fungus to sort through, so how do we keep things organized? Well we may remember learning about phylogeny and taxonomy in the biology series, so let's return to that system of classification and a

From playlist Mycology

Phylum Rotifera Part 1: General Characteristics

It's time to wrap up our study of Gnathifera, and this means investigating phylum Rotifera. These are the wheel animals, and we will need a few tutorials to get through them all. Some species are free-living and some are parasitic, and you've probably had some in your body, since they're p

From playlist Zoology

Ornithoscelida: How did we get here? (Your Dinosaurs Are Wrong Synapisode #3)

http://thensi.org/ - Part 1 of 2. Why is it such a big deal that Theropods might be more closely related to Ornithischians than either is to Sauropods? A (very) brief history of high-level dinosaur phylogenetics. Like our videos? Consider supporting them through Patreon! https://www.pat

From playlist Your Dinosaurs Are Wrong

Phylogenetics

006 - Phylogenetics Paul Andersen discusses the specifics of phylogenetics. The evolutionary relationships of organisms are discovered through both morphological and molecular data. A specific type of phylogenetic tree, the cladogram, is also covered. Do you speak another language? Hel

From playlist AP Biology Video Essentials

Did Mothman Exist?

Today we take a break from paleontology and I try to test out cryptozoology! Hope you enjoy! This time we examine the monster of Point Pleasant, Mothman and we will try to discover the truth centered on this strange being. This video is somewhat inspired by Cryptozoologicon by C. M. Kose

From playlist Cryptozoology

Introduction to Spiralia and Lophotrochozoa

It's time to start digging into Nephrozoa, which is going to take a really, really, really long time to cover. The first major clade within that we will tackle is Spiralia. This includes well-known phyla like Mollusca and Annelida, but also many obscure ones. Let's start quite simply with

From playlist Zoology

Fins, limbs, and the origin of morphological novelty

Dr. Thomas Stewart, University of Chicago 2020 Stanford.Berkeley.UCSF Next Generation Faculty Symposium

From playlist 2020 Stanford.Berkeley.UCSF Next Generation Faculty Symposium

Lecture 4, "But, Lord, He Stinketh!": Marco Pino's The Resurrection of Lazarus

Marco Pino was the most important painter in southern Italy during the later Renaissance. We examine his career and have a thorough look at this little-known but superb work, focusing on how he presents a frequently painted Gospel story of doubt and salvation.

From playlist Let This Be a Lesson

Meet GUANLONG dinosaur - "Crown dragon" hunting Anchiornis (4K animation)

Guanlong is a genus of extinct proceratosaurid tyrannosauroid from the Late Jurassic of China. The taxon was first described in 2006 by Xu Xing et al., who found it to represent a new taxon related to Tyrannosaurus. The name is derived from Chinese, translating as "crown dragon". Two indiv

From playlist DINOSAURS 4K - NEW PREHISTORY

Biological Classification of Hierarchy || #Shorts || Deveeka Ma'am || Infinity Learn Class 9&10

Biological classification is the scientific method of organizing and categorizing living organisms based on shared characteristics. This system allows us to study the diversity of life on Earth and understand how different species are related to one another. The hierarchy of biological cla

From playlist Shorts