Tag «biology»

The Sneaky, Underwater Sex Life of the Goby Fish

Male grass gobys may be small, but some of them are masters of manipulation when it comes to the composition of their ejaculates. Grass gobys are bottom-feeding fish endemic to coastal waters of the mediterranean basin. These small fish have an external fertilization system – meaning the sperm isn’t deposited inside the safe and secure …

5 amazing plants win our Big Picture Plant Awards

5 amazing plants win our Big Picture Plant Awards

We’re here at the Eden Project in Cornwall to meet some fabulous flora for the first ever BiPPAs, – the Big Picture Plant Awards. These awards showcase the glitzy glamour goddesses, clever communicators, ultimate achievers and vile villains of the plant kingdom. Let’s roll out the red carpet! First up is our award for the …

Leaf Structure Cross-Section

In this screencast, we’re going to talk about the structure of the inside of a leaf in order to jump start our discussion of photosynthesis. For the purposes of this screencast, we’re going to imagine that we’ve taken a leaf and sliced it in half crosswise, so that we can look at this cross-section of …

Underwater Wifi: Testing the ABISS Lander | Nautilus Live

Underwater Wifi: Testing the ABISS Lander | Nautilus Live

Lander’s wet Tag line’s clear Landers away Alright so let’s turn the modem on Yep! Okay it’s talking back! We’ve got a good link! For our listeners on NautilusLive…our viewers on NautilusLive, the flashing purple dot in the middle is the optical modem designed at Woods Hole Oceanographic Institution by Norman Farr and members of …

Plant Photosynthesis and Respiration

Plant Photosynthesis and Respiration

Hi, my name is Cynthia Sargent, and I’m the biology curriculum developer and trainer here at PASCO. And today I would like to share with you our plant respiration and photosynthesis lab. It’s a paper lab that is part of our latest edition of the Biology Through Inquiry manual. And you can find details at …

How diving mammals evolved underwater endurance HD

How diving mammals evolved underwater endurance HD

Elite mammalian divers such as the sperm whale can hold their breath for well over an hour while they hunt in the depths of the oceans while land mammals such as humans barely last a couple of minutes underwater without gasping for air. An international team led by Dr Michael Berenbrink at the University of …